Photoshop Alternatives

Photo Editor X with GIMP Tutorials

With this software you will be able to edit your photos in the same way that the best professional studios do You will be able to get the same great results that you will find in professional studios! Normally software that can get the professional results that you need can run you more than $500 for good quality. On top of that you often will not know how to use the software properly, which means you have to spend hours watching videos on the subject. Our software gives you a way to edit photos with professional quality while still allowing even the editing beginning to edit their photos in an attractive and high-quality way. Don't let people convince you to spend too much money Get quality without having to pay a premium. Photo Edit X can give you a way to edit your photos without worrying about all of the problems of professional software!

Photo Editor X with GIMP Tutorials Summary


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Author: Lucas Godfrey
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Installing GIMP and Plug Ins

GIMP works on the three major operating systems Windows, Mac OSX, and Linux as well as on some less popular systems, such as BSD and Sun Solaris. This section concerns itself with installing GIMP on your system. Installing GIMP under Windows GIMP doesn't run by itself on Windows. You'll need to install a runtime environment, a separate file provided by GTK+. In earlier versions of GIMP you had to install GTK+ as a separate file. Now GTK+ is included in GIMP 2.6. It is sometimes necessary and often advantageous to also install GhostScript (GS) and the GhostScriptViewer (GSView) for Windows in advance. If you want to employ a Python script, you must install PyGTK+ and the corresponding The book's DVD includes all files required to install GIMP on Linux, Windows, and Mac OS X. version of Python first. Then you can install GIMP. Thereafter, if required, you can install the help files, UFRaw, and GAP (the GIMP animation package). Here is the recommended installation sequence for Windows 2....

Is GIMP Insecure Some Comments and Tips

Unfortunately, computer programs sometimes crash unexpectedly or react strangely. This can happen with any freeware running on Windows. Since GIMP is GNU software, there are no guarantees. In earlier versions of GIMP, I've experienced some bugs, but from version 2.0 onward GIMP has become very stable. In the event that something doesn't work, it is typically due to incompatibility with other installed software or a specific hardware problem. GIMP's current version, 2.6.10, runs on Windows Vista and Windows 7, therefore there shouldn't be any problems with the installation. However, it may still happen that Window stalls during the loading process. Don't worry. It takes a few minutes for GIMP to get started, especially if you're running it on Windows and many fonts are installed. The stability of GIMP depends on the technical condition of the computer, the drivers, and other installed software. GIMP is more stable when used by a computer running newer versions of Windows than older...

Opening and Developing a RAW Format or Digital Negative with GIMP

GIMP can open most but not all RAW file formats offered by camera manufacturers. As a start, you can use GIMP for editing these images directly, but only with a color depth of 24 bits (8 bits per channel). However, if you want to develop your digital negatives with the original color depth of 16 bits per channel (rather than 8 bits) in order to make fine-tuned corrections and or print a higher-quality photo, you'll have to depend on the RawPhoto or UFRaw plug-in. Once you've integrated one of these plug-ins into GIMP, it will automatically become active when you open a RAW file with GIMP. Let's first take a look at the UFRaw plug-in since it can be installed at a later point in time, as described in section 1.4.5. UFRaw can be used in three different ways. If used as a GIMP plug-in, when you open a RAW file in GIMP, the UFRaw window will automatically open. You can set corrective options for color and brightness values in the preview window. This lets you develop and correct your...

GIMPs Program Windows

Gimp Windows Toolbox

When you first open GIMP, three separate windows appear on the desktop. The Toolbox (or Tools palette) with the tool settings, an initially empty image window, and a window called Dock with windows called dialogs for administrating layers and various other choices (above the dock with the tabbed dialogs Layers, Channels,Paths, Undo, and below the dock with Brushes, Patterns, Gradients). These three dialogs are represented by tabs in the dock. Clicking a tab opens the corresponding dialog. However, these dialogs can be pulled out from the dock by drag & drop. Then they are displayed as separate windows on the desktop. The main windows (Toolbox, image window and dock) are distributed openly across the desktop. Every window creates its own entry in the taskbar, which requires a little getting used to. Furthermore, the taskbar starts filling up as more pictures are being edited. This problem was accounted for in the new GIMP 2.6. The user can set up GIMP so that the image window serves...

The Image Window the Main GIMP Interface

Gimp Magnetic Pen Tool

The image window offers the possibilities to change GIMP's appearance and features. For example, you can use the Windows menu to choose windows that should be opened when the program is started. You close the program by clicking the red X in the upper-right corner of the empty image window or the Toolbox. Edit > Preferences offers access to the most important program settings. This lets you adapt the appearance and features of GIMP to your personal needs. The color management can also be found here. Nevertheless, I have put together 22 themes with various program interfaces and color compositions for GIMP on Windows Vista. There are four standard themes and further themes from the websites and These can be found on the DVD under GIMP Themes (Windows). You will have to copy the contained subdirectories into the following folder C Program files GIMP-2.6 share 2.0 themes. Note that not all themes work equally well. The themes work on Windows from XP upward...

Color Management in GIMP

Apart from calibrating your monitor, you can install an updated driver to get rid of problems with color rendition and brightness in your prints. Generally speaking, the home printer and photo printer can't be calibrated. This option is only available for professional printers. Nevertheless, with the help of color profiles, most printers can be adjusted to the color rendition of monitors programs. This is where color management is necessary in GIMP. Since GIMP 2.4, it is a standard feature. You can find the Color Management settings (Edit > Preferences) in the image window. GIMP doesn't have color profiles in its program. If you want to use color profiles in GIMP, you can load them into the program via Preferences Color Management. From the respective drop-down menu, for instance the one at RGB profile (see figure 2.33), choose Select Color Profile from Disk and search your computer for the color profile. In Windows, you will find this under and in Mac OS X, under USING GIMP...

Starting GIMP for the First Time

When you launch GIMP for the first time (by double-clicking the GIMP icon on the desktop or by choosing Start > All Programs > Gimp), a dialog box pops up. Use it to set up GIMP according to your personal preferences. For standard use, accept the settings and click Continue to proceed. When you are asked to choose a temporary directory for GIMP, you can type C Windows Temp, which is Windows' default directory for temporary files. This is the standard directory for Window temporary files and can be easily cleaned up by using a Windows tool (Start > All Programs > Accessories > System Tools > Disk Cleanup). Accept the recommended suggestions provided by the installation dialog or create your own directory. For Linux and Mac OS, you will encounter the same window that offers a choice of default settings. Simply accept the settings and the suggested temporary volume. You can also choose another directory most conveniently on a second hard drive. This all will happen only if...

Native GIMP File Formats

Note GIMP 2.6 can also save animations in MNG format, a format derived from PNG for animations for the Internet. However, most browsers, except for the Konqueror, don't support this format yet, or they support it only when you have installed an additional plug-in. GIMP Pattern GIMP Brush GIMP Brush (animated) GIMP XCF image GIMP supports the following RAW camera formats without UFRaw, but so far, only in the RGB color mode with 24 bit color depth

Importing Brush Pointers from Adobe Photoshop into GIMP

It is comparatively easy to import brush pointers from Adobe Photoshop or Adobe Photoshop Elements into GIMP. You simply have to copy the brush set files from Photoshop with the extension abr. You can find them in the Presets Brushes subdirectory of your Photoshop installation directory. Copy the file into the brushes folder in your GIMP installation. (The entire path in Windows is You can find a variety of prepared brushes for Photoshop and GIMP as free downloads on the Web. Simply enter the keywords Photoshop (or GIMP) and brushes into your preferred search engine. I have also listed several Web addresses for brushes in the section 3.11.6.

Using GIMP 26 About This Book

If you are reading this book, you are probably interested in learning how to touch up your digital photographs or create your own graphics or logos. However, before investing hundreds of dollars on expensive software, you may want to make sure that manipulating digital photographs is something you truly enjoy. That's where GIMP 2.6 a free digital image editing program comes in. You most likely want to learn how to use this free software to improve your photographs. This book is designed to facilitate your entry into the world of digital image editing with the help of GIMP 2.6. Using hands-on examples, this book will provide solutions to common problems encountered when editing digital images. The instructions are structured in a step-by-step fashion. Each editing tool and function of GIMP 2.6 will be explained in simple language. You will learn the fundamentals of digital editing, familiarize yourself with common image editing tools and their functions, and acquire a working knowledge...

Real Help GIMPs Help Function

With this book at hand, you should easily get along with GIMP. But if you would like to go into more depth and learn about all of the possible settings, you might try using the Help function. It must be rather tedious for software programmers to develop help programs and documentation. They seem to be written after the fact. For GIMP, this definitely has been the case. Sometimes you may rely on the Help function and it responds by opening a window that says Eeek The Help function is missing here. Fortunately, this doesn't happen much anymore. Since the release of GIMP 2.0, the Help function has continuously been extended and is rather comprehensive. The user manual recently has been updated to GIMP 2.6. In any case, it might be worthwhile to have a look if you have any questions. It is great for information concerning tools and functions. You can find the Help function for GIMP by using the Help menu in the image window. Various help topics are available. If you choose Context Help,...

Typing in GIMPthe Text Tool

The Text tool in GIMP's Toolbox allows you to create dynamic text in an image. It's called dynamic because the process is based on vector representation in spite of the fact that the text is added to an image as a pixel element. Vector representation allows you to post-edit the text as well as its attributes, such as color and font type or font size. When you type text onto an image, the process creates independent text layers, which means that the text is not baked on a background or another layer. With GIMP 2.6, a new addition to the text tool is that the text is now placed in a text-bounding box over the image. You can enlarge the text box by dragging the edges with the mouse pointer. The text is then automatically adapted to the new frame size. You can create titles, individual texts, or comments about the image, but it is not suitable for page layouts with lots of text. The Text tool options, GIMP's Text Editor, and text layers in the Layers dialog The Text tool options, GIMP's...

The price of a powerful piece of free photoediting software is that the Gimps presentation and operation is a little

Download the Gimp from http gimp-win.sourceforge. net stable.html. Installation is similar to most other Windows applications. Just pick your installation directory and you're done. This is what you'll see when you first open the Gimp, and if you think it isnt particularly friendly, you'll find plenty of people to agree with you. The blank slate approach can be a bit off-putting, but youll soon get used to it Click on the File menu and choose Open, which will produce the Gimp's very non-standard file-chooser dialog box. It doesnt have shortcuts to the likes of your My Pictures folder, but you can add those manually. Once your photo is open, you'll see a more familiar set of menu entries in the top line of the image window itself. It's fairly standard stuff, with some of the Gimp's more esoteric features hidden beneath the surface.

Downloading and Installing GIMP

For Linux users, GIMP 2.7 is only downloadable as source code. Thus, Linux users have to compile the application themselves. RPMs and other installation packages are not available. Developer's versions are sporadically available for Windows (*-setup.exe). Linux and Windows users can find the source code or setup binaries on the website of SourceForge When installing GIMP 2.7, you should bear in mind that if you have an older GIMP version installed and want to continue using it, you have to change the file path when installing the developer version. For Windows, instead of the default path C Program Files GIMP-2.0, apply the path C Program Files GIMP-2.7 when installing the developer version.

10.1 Mega Pixel Gimp

1.2.1 Using GIMP 2.6 - About This Book S 1.2.2 About GIMP 1.5 Get GIMP 1.5.1 Where Can I Get 1.5.2 Installing GIMP and 1.5.3 Starting GIMP for the First Time 34 1.5.4 Is GIMP Insecure Some Comments and Tips 35 1.5.5 GIMP's Program 1.5.6 The Image Window, the Main GIMP Interface 41 1.5.7 Real Help - GIMP's Help Function 47 Using GIMP Correcting and Touching Up Digital Negative, with GIMP 53 2.3 Editing Images in GIMP 77 2.7.2 Creating New Brush Pointers in GIMP and Importing

Where Can I Get GIMP

GIMP is a free program for image editing, designed and developed for the (largely) free Linux operating system. When Microsoft Windows users discovered GIMP, their interest motivated the development of a Windows version that has been available for several years now. The Windows version and additional helpers or plug-ins can be downloaded for free from the following locations. GIMP's home page is at http You'll find links to versions available for the Linux UNIX, Windows, and Mac OS X operating systems as well as many other interesting details. You can find GIMP, GTK+, and additional packages for Windows at or http projects gimp-win files . A Windows installer for the GIMP animation package GAP for GIMP version 2.6.0 is available at http shared e9i2rgyn9t. GIMP supports plug-ins written in the Python programming language. For Windows, you must first install Python and the PyGTK+. The installer for Python is available at http


GIMP is an acronym for GNU Image Manipulation Program. It's a freely distributed (open source) program, which means that unlike commercial software, The GIMP is under continual development by a group of volunteers and enthusiasts around the world. The GIMP is meant for doing things like photo retouching, digital painting, and image composition and editing. I've found everything I was looking for in The Gimp, says artist Pat Thompson. I'm astounded by all the color-manipulation tools and options. It has layers, color management including Lab color, an optional animation module, and several tool options I'd never heard of before. The GIMP is expandable and designed to be augmented with plug-ins and extensions. It's written and developed on the UNIX platform, although it also runs on Windows and Mac (OSX only). To use The GIMP, you'll need only enough computer expertise to download it and follow simple directions. For printing, Windows users activate the normal printer drivers, and Mac...

Introducing the Gimp

The interestingly named Gimp - which stands for the GNU Image Manipulation Program - is one of the heavyweights of the open-source software movement. Open-source software is free for anyone to download and use, and the Gimp is no exception. In many respects, it's the match of the commercial packages you'll find on p102 onwards, and it has many of the same features. Some people absolutely swear by the Gimp and wouldn't use anything else. It's been in development for more than a decade, and many of its features - for instance, its undo facility - were way ahead of their time when originally incorporated into earlier versions. installing The first hurdle is installation, which isn't quite a one-click affair. Although Mac or Linux users can download the Gimp from, Windows users need to download a different installation package. Head to instead and download from there. The good news is that the installation routine has been massively refined in recent years, and where...

About GIMP

GIMP is an acronym for GNU Image Manipulation Program. GIMP was bred from the Linux world and is an open-source software program covered by the General Public License (GPL). GNU means GNU's Not Unix and refers to a collection of software based on the UNIX operating system and maintained by the Free Software Foundation. GIMP is the Photoshop of the Linux world it is the best free image editing program. GIMP 2.6 was introduced in October 2008. This enhanced version of GIMP meets the functionality requirements of even the most exacting digital photographer. Its interface is highly efficient and easy to use once you know your way around. In fact, the book you are reading right now is mostly based on GIMP version 2.6.2 (released in October 2008). From the point of view of the user, there have been no changes yet up to version 2.6.8 in January 2010. So for all general purposes, this book is current. GIMP's primary function is to create and edit pixel or bitmap images, but it also can be...

A GIMP 28 Preview

GIMP was created by a group of independent, noncommercial programmers and is continuously being developed further. In January 2004, GIMP 2.0 was released, followed by version 2.2 in December of the same year. GIMP 2.4 appeared in October 2007, followed by version 2.6 a year later in October 2008. The developers have begun their work on a new and more stable GIMP 2.8. It is still hard to say when it will be released, but some of the goals of the developers are identifiable. Nevertheless, the developer release of version 2.7x is freely available. Interested users can get an overview of the new program and try out the new tools. However, one shouldn't expect a fully functional program. Moreover, as the stable version competes with the beta version when used on the same computer, it is possible that one of the two programs won't work. At the end of this section I will point where you can download a developer version and what to watch out for. I would like to give you an overview of the...

Important File Formats for Practical Work

XCF GIMP's Native File Format GIMP's XCF format was created for the primary purpose of saving images with layers however, it can also be used to save images that aren't finished yet. The XCF format saves image layers by employing a lossless compression method. So the file size of an XCF formatted image will be smaller than most other image file formats and about 30 percent smaller than the PSD format, described later. Since overly large files are cumbersome and can be unmanageable, GIMP's native XCF format is the best choice for storing images with layers. The only drawback of GIMP's current version is that XCF files cannot be opened in another image editing program. If you want to export an XCF file into another program, you must first convert a copy of it into JPEG, PNG, or TIF. If you plan to consistently use other programs in conjunction with GIMP 2.6, you should save images with layers in the PSD format. PSD (PhotoShop Document) is the native file format of Adobe Photoshop, one...

Screen Colors Color Models and GEGL the New Graphics Library

GIMP's version 2.6 employs three color models RGB (red, green, blue), grayscale, and indexed. GIMP uses the RGB colors, or colors of light, as its default. Together, these colors form what is known as the additive color model. It uses the three primary colors red, green, and blue to create a color spectrum containing approximately 16.78 million colors. This is called true color because it represents the maximum number of colors that a computer monitor or television screen can display. In the RGB color model, the colors are normally defined in decimal numbers. As mentioned earlier, each single color can have a value between 0 and 255. You can use the eyedropper icon located in the Toolbox of GIMP to open the Color Picker to measure a color. The Color Picker will show you the number corresponding to a color's exact value so you can easily transmit the information to your colleagues or work partners. GIMP conveniently performs this conversion for you. Its Color Picker tool will provide...

Opening an Image in UFRaw

When you start the stand-alone version of UFRaw, you'll see the window UFRaw you will use to open files. This window looks similar to the window in GIMP for opening an image using the File > Open menu option. Windows users may need some time to get accustomed to it because this window looks somewhat different than the Open window in standard Windows programs. To the right of the windows are scrollbars to simplify the search in your directories. Unlike the window you use to open files in GIMP, the window in UFRaw does not have a third pane with a preview of the file you selected.

Converting Camera RAW Image Formats under Windows Mac OS X and Linux Freeware and Plug Ins

Highest Quality Format Gimp

Since version 2.2.6, GIMP supports RAW formats, so you can directly open and edit RAW formats with the program. Unfortunately, GIMP does not work with all proprietary camera RAW formats, so you'll need to make sure it can read your camera's format. At the end of section 5.6, you will find a list of RAW formats GIMP can read. If GIMP can read the RAW format your camera uses, the images will be available with a 24-bit color depth (8 bits per color channel). Remember to save the finished image in a high-quality standard format, such as TIFF or PNG. RAW formats offer more than a means to optimally save your photos. RAW also permits you to adjust the color and brightness settings, using the RawPhoto or UFRaw plug-in (explained in a bit) with a color depth of 16 bits per color channel. For example, this means that you can edit underexposed photos with more efficient options than those currently offered by GIMP with only 8 bits per channel. Thus, working with digital RAW images is called...

Lightness Adjustments

The developing and correction of the image is now complete. The steps until now represent developing a RAW image. The actual editing begins after the handover to GIMP. UFRaw does not offer a feature for sharpening images. You have to hand the image over to GIMP first. A click on the icon with GIMP mascot Wilbur at the bottom right does the trick. UFRaw shuts down and GIMP starts. The image is then displayed in GIMP. You can, however, crop the image in UFRaw before you hand it over to GIMP.

Raw Therapee for Developing Raw Images

RawTherapee's program screen offers many options and seems a little cluttered at first. The program offers a row of functions that are available in GIMP but not in UFRaw. In RawTherapee, you can perform all the steps in 16-bit color depth per channel. RawTherapee's program screen offers many options and seems a little cluttered at first. The program offers a row of functions that are available in GIMP but not in UFRaw. In RawTherapee, you can perform all the steps in 16-bit color depth per channel. GIMP developers recommend UFRaw for developing RAW images. It works as a plug-in to GIMP. UFRaw is integrated in distributions for Apple Macintosh. Another easy to use, extensive, and free program for developing RAW photos is RawTherapee. It can be downloaded at http www.rawtherapee. com and is available for Windows and Linux. RawTherapee is not a plug-in for GIMP. It's an independent program and a great alternative for developing RAW photos. Through an internal link, you can open your...

Editing a Scanned Image

Miami Tif Gimp

To help you practice the editing steps that follow, you'll find an image called miami.tif in the Sampieimages folder on the accompanying DVD. Open the file (choose File > Open in GIMP's Toolbox) and save it as miami-impro in an exercise folder on your hard disk. Save the image in a high-quality file format, such as XCF or TIFF. GIMP's image window displaying the miami.tif image. (Photo by Claudius Seidl) GIMP's image window displaying the miami.tif image. (Photo by Claudius Seidl)

Shadows Highlights Correcting backlit photographs with the gradation curve

Backlit photographs constitute a difficult situation in photography. The surfaces of the photographed objects in the foreground appear shaded. In a contrary but similar manner, photographs taken with a flash are overexposed in the foreground. As long as there is enough distinguishable image information available, you are able to improve these photos considerably. In some programs, you can use a Shadows-Highlights function to improve your image. For GIMP, there is a plug-in yet GIMP's Curves function is suitable for making these corrections. Select the image ship.png from the Samplelmages folder on the DVD.

Overview of Select Tools in the Toolbox

A half-automatic select tool to select foreground image objects. Roughly outline and draw over an object with the tool. The object is automatically extracted by GIMP. Depending on the contrast of the extracted object, it is fast and precise but can also be insufficient. Don't expect any miracles.

The Image Window Your Workspace

In GIMP version 2 and higher, the image window features a menu bar where you will find familiar menus such as File, Edit, View, and so on. We will discuss the items on each menu one by one later on. You will also find these menu items in the image window's context menu (right-click the image window to open it). The full menu as context menu of the image window is a speciality of GIMP. In earlier versions of the program, this was the only way to access the menu. Some users find that it's quicker to work within the context menu. The image windows in the screen shots in this book show an additional menu, Video. This is because GIMP's animation package GAP has been installed. A normal installation of GIMP will not show this menu. The image window (and all other windows in GIMP) behaves like a typical Windows window. If you move the cursor to the border or to a corner point of the window, the cursor will morph into a dual arrow, enabling you to manipulate the window size by dragging it...

Setting the Contrast and Color Levels Tonality Correction

Correcting tonality will improve the quality of almost any image. GIMP offers several options to do this. USING GIMP CORRECTING AND TOUCHING UP YOUR IMAGES At the top of the Levels dialog is a Preset drop-down menu. Since GIMP 2.6, you can find this in almost all program windows. You can use this menu to name and save your settings.

Setting the Image Size and Resolution

2.3 EDITING IMAGES IN GIMP GIMP can be a bit fussy when you're making a selection in the Scale Image window. Sometimes it doesn't accept an entry the first time you press Enter. Simply repeat the procedure again. I admit I might be imagining this, but pressing the Enter key harder seems to help in this case. Since the pixels are being recalculated with this method, it has an effect on the quality of the image. You must apply this function if you want to enlarge the image or when you want to scale down the image for use on a website or for sending via email. When setting up the image for printing, you may want to have a look at the function described in the next section, which doesn't need any recalculating. The original numbers of pixels as well as the quality remain the same.

Features and Elements of UFRaws Main Window

USING GIMP CORRECTING AND TOUCHING UP YOUR IMAGES Below the preview image there is a taskbar with options for enlarging the image, changing the defaults, and saving the image and passing it on to GIMP. If you enlarge the preview image, you can use the scrollbars to move the picture detail around in the window. Once the preview image is enlarged, a crossed double arrow appears at the lower-right corner. Click it and hold down your left mouse button. A small preview image appears. Now you can slide around in this preview image with your mouse, thus moving the zoomed image area. You will encounter this feature again in GIMP (see section 2.3.3).

Step 4 Adding a New Object or Layer Sky to an Image

GIMP offers several alternatives for importing images as layers and combining several different image files into a single file. Importing images is pretty easy Simply drag and drop a layer from the Layers dialog on another image window. However, it is a good idea to adjust the size and resolution of the image layers you intend to import so they correspond to the target image's size and resolution. When importing images, only the layers are copied. The original images remain unchanged.

Using the Paths Tool as a Masking Tool Using Filters for Light Effects

The Paths tool has multiple uses On the one hand, it enables you to produce free (vector-based) shapes that can be transformed, filled, and otherwise edited. On the other hand, GIMP supports a variety of methods to create selections from paths and transform selections into paths for example, in the Paths dialog or in the Select menu.

Tips for Handling Select Tools

The tools can be used to select specific shapes. If you want to select a four-cornered area, you would use the Rectangle Select tool, and you would choose the Ellipse Select tool for selecting a round area. GIMP provides the Free Select tool (Lasso and Polygon Lasso), the Fuzzy Select tool (Magic Wand), and the Paths tool. You can also select an area with a color select tool, which can be adjusted to select a certain color or color attributes. All select tools have the common characteristic that areas in the image have to be selected. A new addition to the program is the half-automatic Foreground Select tool. Basically it is enough if you roughly outline and draw over the image object. The program renders the extract automatically. The more contrast the image has, the better the tool works. The shape tools (Rectangle and Ellipse) are also used to create shapes. Just select the tool, click on the image, and while holding the left mouse button down, diagonally drag the cursor over the...

Removing Lens Distortion Making Perspective Corrections and Reducing Vignetting

To correct these defects, GIMP offers the Lens Distortion and Curve Bend filters. These filters provide not only perspective corrections, but also to a certain extent corrective measures for barrel- and pincushion-shaped lens distortions. If you wish, you could give your image the effect of a photo taken with a fisheye lens (an extreme wide-angle lens). You can also reduce or even eliminate vignetting. Basically, vignetting is the reduction of an image's brightness or saturation at the periphery in comparison to the image center. This effect often occurs when wide-angle lenses are used.

The Change Foreground Color Window

The color area is GIMP's basic color palette. It consists of two colors, the foreground color and the background color, and you can use it to choose colors for painting, writing, or filling. Clicking on any color brings up the Color Editor dialogs. In the Change Foreground Color window, there are tabs allowing you to change the way in which color is represented. The most common is RGB mode (and HSV mode), which is set as default, resembled by the tab showing the GIMP icon. This color mode is found in most popular image editing programs.

Essential Monitor Settings

Initially, it may be enough to select a suitable color profile for your monitor and to adjust it to GIMP (or any other editing program). Should the printout still deviate from your screen rendition, you can calibrate you monitor. When you calibrate your monitor, you are optimizing the color rendition and its gamma value (grayscale contrast and brightness) to assure that the images on the screen have the correct color and brightness values.

Using Filters to Color and Bleach an Image

Gimp Sketch Effect Script

Another filter that is installed in GIMP alters your picture, both color or black and white, into a grayscale image with great effects. It is the Photocopy filter (Filters > Artistic > Photocopy). The application is so easy that you should try it out. You can also find a wonderful filter called Pencil drawing from photo that alters a picture (both black-and-white and color), as the name implies, into a pencil drawing. But note that this script-fu works only on images in RGB mode. You can find it on the website GIMP Plug-ins Registry (http registry.gimp. org node 11108) or on this book's DVD under Script-Fus. Another grayscale filter that creates images that look like drawings is Quick sketch (http registry. node 5921). This is also a so-called script-fu. One of the sliders controls the display. Try it

The Foreground Select Tool Extracting Images Automatically

Before we turn to a work-intensive method where we mask image objects by hand, I will show you the automatic method. The Foreground Select tool that has been included in GIMP since version 2.4 offers a method to easily extract objects in images. Let's have a look at what the tool can do.

Creating a Selection with the Polygon Lasso Following a Contour

Next, select the rounded form of the wine glass with the polygon lasso. Take your time, zoom in on your image, and break up the selection of the contour into several stages you may have to click several times. Panning is a great feature when you have zoomed in on your image When you move your cursor close to the edge of the image, it scrolls in the direction you are going. This works with the Free Select tool and other similar tools. However, don't make any hasty movements because otherwise you might land in the middle of nowhere of your image. With GIMP 2.6, it is also possible to move the picture detail beyond the edge of the monitor. Try it with the little navigation window that can be opened by clicking the icon of the crossed arrows (Navigate the image display) at the bottom right of the image window. The auto-panning feature in GIMP 2.6.8 didn't work on my computer with Windows Vista. However, holding down the spacebar, you can easily (and safely) pan around by moving the mouse.

The Color Picker Tool Using the Eyedropper to Select a Foreground Color from the Image

You can use the Color Picker tool to select any color on an active layer or image. If you select this tool and click on a color on your image, you can select this color as the foreground or background color. The foreground color is used when you're painting, filling, or adding text. In GIMP, the foreground color is also the default color for color gradients.

The Free Select Tool Polygon Lasso as a Select Tool

The polygon lasso has been introduced to GIMP in version 2.6. You can cut out image objects precisely along the contours and quickly extract constructed, preferably straight forms. I'll show you how to use the polygon lasso in the following section. You must work cautiously when you are making a selection, and you must adjust the settings when you are extracting a rounded form such as a wine glass. Actually, GIMP has a tool better suited for these kinds of tasks -the Paths tool. But you will notice that you can manage just as well with the polygon lasso. Therefore, I will compare the two.

The ScriptFu Layer Effects

Jon Stipe developed an equivalent script-fu for GIMP called layerfx.scm. You can download it from http node 186. You can also find it on the DVD in the folder GIMPScript-Fus. Installing script-fus and filters is described in section 1.5.2. After the installation in GIMP, you must select Filter > Script Fu > Refresh Scripts. A new entry, Script-Fu, then appears in the menu bar. Under Layer Effects, you can find a dozen different layer styles with a multitude of settings. Unfortunately there isn't a preview function. You will have to experiment with the various settings and choices. But it is worthwhile.

Short Introduction to Working with Layer Masks

The possibilities of nondestructive editing in GIMP are to be increased with the further implementation of the GEGL library. The intention is to have a function similar to the adjustment layers in Adobe Photoshop, where tonality correction (Colors > Levels) is not applied directly to the pixels. Rather, some sort of mask is placed over the layer and subsequent changes are applied later. 3.15 GIMP AND HDR Compare the three images (figure 3.116, figure 3.117, and figure 3.118) the reference image that hasn't been edited since it was taken, the LDR image that was created with GIMP by blending the images, and the real HDR image that was created with FDRTools Basic. We will take a closer look at creating HDR images in the following section. I have listed here links to interesting tutorials and examples suggesting similar methods of editing bracketed images in GIMP The pseudo HDR image created with GIMP The pseudo HDR image created with GIMP

Sharpening Images and Image Elements

GIMP offers various options to sharpen fuzzy photographs. There are two filters to choose from Sharpen and Unsharp Mask (Filters > Enhance > Sharpen Unsharp Mask). These filters affect the entire picture or the active layer. You can, however, also select a section in the image to restrict the filter's effect to that area.

Eliminating the Red Eye Effect

Since GIMP 2.4, there is a filter to eliminate the red-eye effect. You'll find it by choosing Filters > Enhance > Red Eye Removal. The filter is easy to use and efficient. You can follow the steps as we go along. To do this exercise, open the image redeyes.bmp in the SampleImages folder on the DVD and save it in your exercise folder. The Red Eye Removal filter didn't exist in versions of GIMP prior to 2.4. You can use the method used before the Red Eye Removal filter was introduced if the filter didn't have the desired effect. Here comes the description

Using the Threshold Function to Extract Hairthe Task

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Adding Special Characters

GIMP's Text Editor lets you type all characters you find on your keyboard. Special characters, such as the copyright character, , or accented characters, such as n, are not included. However, Windows users can find special characters and Unicode key positions in the Character Map, which can be accessed from Start > Programs > Accessories > System Tools. Simply, with a right-click of your mouse, you can copy and paste the characters into GIMP's Text Editor. The prerequisite for this and for the other mentioned methods is that the special symbols are available in the selected character set. Then return to GIMP's Text Editor window and click on the spot where you want to insert the symbol or accented character. Right-click, select the Paste option, and voila the character is pasted into the text line.

Introduction to Working with Layers

Imagine you want to compose an image from several images that you've stored on your computer. Well, you can do just that The process is similar to the production of animated cartoons. You begin with a background image. Then you place one or more transparent foils (which are layers comprising image elements on top of transparent backgrounds) on the bottom, or opaque, background layer. A stack, a collage of single images, is created, one on top of the other. Certain file formats let you save those images with foils and layers, to a single file. The layers remain as single images in this one file, so they can be edited and altered afterward. During the editing process, you can move these layers to the front or the back of the image to determine which layer should overlay the other. In GIMP, file formats for saving images with layers are XCF and PSD. To edit images with layers in GIMP, access the Layers dialog in the Layers, Channels, and Paths dock. If it isn't present, you can call it...

Performing Magic Editing Photographs with Graphic Filters

You can find all of GIMP's filters in the Filters menu. The script-fus are also found there. Script-fus are output sequences, so-called macros, that work according to a defined yet adjustable procedure. Actually, most filters in GIMP are script-fus, written in the GIMP scripting language Scheme and saved as scm-files. GIMP has a variety of artistic and graphic filters in store. I would especially like to point out the GIMPressionist (Filters > Artistic > GIMPressionist). It's a real filter laborato ry

Programs for Creating Panoramas Automatically

Several programs are available through the open-source community that will automatically produce panoramic images. The tools Hugin and PTGui are available for Windows, Linux, and Mac OS operating systems. Autostitch, a tool available only for Windows, is easy to use but for JPEG files only. This one is shareware. PanoTools is a plug-in for GIMP 2.0 (Windows). However, so far it can't be used for the newer GIMP versions under Windows. But it is worthwhile to download it as a stand-alone program. Pandora is another GIMP plug-in for creating panorama images. You can find the download and an introduction to the program at the following website

The Graphical Library GEGLDeveloping Blackand White Images with GEGL Operations

The Generic Graphics Library (GEGL) has been integrated in GIMP with version 2.6. It is supposed to be expanded to ensure image editing with more than 8 bits per channel with GIMP. Some of the computation functions based on GEGL are already assembled in the GEGL Operation window , which can be found by choosing Tools > GEGL Operation.

Cross Fading Part 3Merging Images into one Pseudo HDR

Cross Fade Photoshop

GIMP doesn't offer any features for merging HDR images. However, I would like to show you a method to reach similar results. Actually, it is used to cross-fade parts of images, letting you merge images, but you can also merge bracketed photos with this method. In addition, you can create the basis for a pseudo HDR image by editing one preferably underexposed image with the tonality corrections in three different variations, saving each variant as a new image. 3.15 GIMP AND HDR 3.15 GIMP AND HDR

Converting Images into Blackand White Graphics

It is possible to convert images into pure black-and-white graphics with GIMP. Threshold is the quick-and-dirty function used to convert images and can be found in the Colors menu. It doesn't matter if the image is a color or grayscale image, it converts the image into a pure black-and-white graphical image. The only option for adjustment is the triangular slide control under the histogram, marking the point the contrast is inverted. The GEGL operation threshold (Tools > GEGL Operation) works in a similar fashion.

Scaling the Print Size of Images An Example for Converting Resolution and Size

When you open an image imported from your digital camera, GIMP tells you what the image dimensions are in the Image > Print Size window. For example, it might read as follows 1200 pixels X 1600 pixels 16.667 inches X 22.222 inches with a resolution of 72 pixels inch (the figures of this example refer to the size and resolution of a 2 megapixel image from an elder camera). If you want to reduce the image to print size of 5 X 7 inches, for instance, you must set the value for Height to 7 inches. The image size will be recalculated to a size of 7 inches X 5.25 inches. The program calculates a new value of approximately 228 pixels inch (exactly 228.571 pixels inch) for the image's resolution. The Print Size function does not change the number of pixels. Therefore, the file size and the information content remain the same. This process does not require a recalculation of the pixels. The quality ( image information, amount of image data, number of pixels) is not changed, just the size of...

The IWarp Filter a Closing Comment

You could animate an image you've modified with the IWarp filter. Therefore, you should save the finished image with the created individual layers in the XCF format. Once the GIMP animation package is installed, you can create a video. I will admit that I failed to play back my animation under Windows Vista due to codec problems.

Creating Light Reflection with Filters

In addition to graphic and painting techniques, GIMP offers a number of filters that simulate special lighting situations or simply set highlights and also can be used to create lens reflections in an image. The Supernova filter (menu Filters > Light and Shadow > Supernova) can be used to make radiating reflections depending on the radius setting. You were introduced to this filter in section 3.6.5.

Characteristics of Pixel Images

GIMP is used primarily for editing pixel or bitmap images. Pixel images are made up of tiny dots called pixels these images are somewhat like mosaics in structure. All photographic images captured by a digital camera or copied by a scanner are pixel images. The pixel image is considered standard.

Hints for Working in Grayscale and RGB Modes

By default, GIMP works in RGB color mode, which supports the representation of approximately 16.7 million colors. This color mode supports all the tools available for manipulating colors or color values in an image. In addition, GIMP offers the grayscale mode. Grayscale corresponds to a limited color palette of 256 gray levels, including black and white. All tools used to manipulate brightness and contrast levels are supported in grayscale mode. However, tools, filters, and options that directly manipulate colors are not supported in the grayscale mode. This means that certain tasks, such as the subsequent coloring of black-and-white images, must be performed in RGB color mode. So what is the point of working in grayscale mode

Why You Need Smooth Brushesthe Clone Tool

Because GIMP doesn't come with a large array of brushes, it provides a simple way to create new brushes. You should create a certain choice of additional brush pointers in advance so that you can change a pointer quickly when you're working. Once you have created a brush, you can save and reuse it.

The Perspective Clone Tool

Originally, to introduce a new image element into another image with the correct perspective, GIMP only had the transformation tools, such as the Perspective tool. Since GIMP 2.4, we have the additional choice of the Perspective Clone tool to copy sections from an image with the help of a clone tool. These sections can then be placed into the intended image in the correct perspective.

Preface to the Extended Second Edition

A good three years have passed since the first publication of my book GIMP 2 for Photographers. In the meantime, the new GIMP 2.6 has become available. Essentially, the subdivision in separate dialog boxes has remained the same. However, there have been various modifications in the segmentation and layout of the menu bars as well as in the appearance, characteristics, and handling of windows. New tools and functions have been added to the menus. Some tools offer new additional functions such as scalable brushes and scalable options. In the future, the new graphics library GEGL will be quite essential in enabling GIMP to operate with greater color depth. That is to say that GIMP will be able to work with photos with more color information than before. Also, the choice of the color palette CMYK for printing in the four-color process will be available. However, the full integration of these functions won't be available until the next one or two versions. This new edition of my book...

So Far So Good How to Proceed from Here Tips and References

If you are looking for further suggestions and assistance for working with GIMP, you can find tutorials as well as pages with tips and tricks for digital image editing on the Web. Have a look at the sites at the following locations http tutorials and http . On http links , you will find many links and tutorials to help you get started. And is a great website from the GIMP User Group (GUG) with many amazing tutorials. Another website offering video tutorials for GIMP is http . You can also search the Web for video tutorials (search for gimp and video).

Drawing a Mask Using Paint Tools with Various Edge Attributes

However, GIMP provides two methods to either draw or edit masks with paint tools. Since you can determine the edge attributes with the paint tools and the Eraser tool, a selection created in this manner can therefore have various edge characteristics depending on the brush pointer you apply.


An image's size (the dimension in inches, millimeters, or pixels) is directly dependent on its resolution. If you transform an image with a resolution of 300 dpi to a resolution of 72 dpi using GIMP, the image size (width x height) increases more than fourfold, even though without interpolation the number of image dots remains the same.

Printing Images

Fortune Summoners

To print images from within the GIMP, you'll obviously need to connect a printer to your computer and make sure a recent driver is installed. Generally, you can find drivers via a Download or Support link on the printer manufacturer's website. Gutenprint offers drivers for Linux and Mac OS X at http . Gutenprint used to be called Gimpprint. The name was changed to clarify that it isn't just a plug-in for GIMP. Nevertheless, the plug-in for GIMP remains in the assortment of drivers. Additionally, Gutenprint encompasses CUPS and Ghostscript, and it also supports Foomatic. After you install your driver, the operating system recognizes your printer automatically when you plug it into the USB port. You can select your standard printer in the print preferences (in Windows, Start menu > Devices and Printers). Whether your printer is connected to a parallel port or a USB port can be a factor. Older GIMP versions recognize some printers at the parallel port only,...

Creating a New Image

In the Color space item under Advanced Options, you would normally select RGB color. Grayscale is used for black-and-white or grayscale images. However, it is often preferable to use the RGB color space for grayscale images as well because the RGB option supports all of GIMP's features.

Scanning Your Image

As mentioned earlier, a separate program (usually the scan program that came with your scanner) actually processes a scan, even though you're capturing the image within the image editing program. Because scan programs vary according to the make and model of the scanner, the example dialogs may be slightly different than what you will actually see on your computer screen. To scan an image from within GIMP, select File > Create in the Toolbox. You can choose Create > From clipboard to load an image that you previously copied to the clipboard (using the Copy menu item) as a new image in GIMP. You can also do this with screen shots (i.e., a copy of what is currently displayed on your computer screen). Under Windows, simply press Ctrl+Print Screen. If both your scanner and your scanner's software were properly installed, a dialog box specific to your scanner will appear. Because this dialog comes directly from your scanner's software rather than GIMP, it might look and work a little...

Whats on the DVD

In addition, the DVD includes the GIMP installation files for three operating systems Windows, Linux, and Mac OS. To download more recent program versions or installation files, it is recommended that you visit the websites listed in this book. You can access them directly from the LinkList on the DVD. Windows users will find all files necessary to install the GIMP version 2.6 on the DVD, including various helper programs and plug-ins and the RAW developer UFRaw. Linux users will find the GIMP source code for version 2.6.10. Users of Mac OS version 10.5 and 10.4 (for both Intel and PPC Macs) will find the installation file for GIMP version 2.6.10. The disc images already have UFRaw installed. The help function will be installed from the application's folder. GIMP is open-source software that can be distributed for free under the condition that the development software, or source code, is included in the distribution. You don't have to install the source code unless you're a Linux user...

Saving Your Image

When you have finished editing an image, you can hand it over to GIMP. You can also save it as a stand-alone version directly out of UFRaw. The Save tab offers you the following options Compared to earlier versions, you don't have the option of choosing the color depth (8 bits or 16 bits per channel). The images are saved with 24 bits (8 bits per channel). The first three are high-quality formats. GIMP can read all these formats, but TIFF and PNG are the best options (high quality and widely used) for exporting into other programs.

HDR Software

To create HDR images, you need special software. GIMP can be used to edit only images with 8 bits per channel, but there is a Python plug-in that will create HDR images with the help of GIMP. More information and the download can be found at http node 24310.

The Layers Dialog

You can access the Layers dialog either from within the Windows > Dockable Dialogs menu item or from the Windows > Layers, Channels, Paths, Undo menu item in the image window. By default, when you start GIMP, it displays the Layers dialog in a window together with the dialogs for channels, paths, and the undo history. You can click a tab to select one of these dialogs (upper area in figure 3.8). Floating selections are a special feature of GIMP. If you copy and paste the contents of an image selection, it will appear in the Layers dialog as a floating selection. You can then either double-click to paste the floating selection as a new separate layer in the image or click Anchor Layer to merge the floating layer and the previously selected active layer. This is an efficient method when pasting multiple copies of your floating selection to an active layer or when pasting a previously modified selection to a specific layer.

Crop and Rotate

USING GIMP CORRECTING AND TOUCHING UP YOUR IMAGES All measurements are indicated in pixels. You can change the aspect ratio for the printer or for the lab, but the program does not let you adjust the setting to a specific size or resolution. You must use GIMP to edit the image size and resolution as well as the print size.

A he creation of black and white more properly now called

Today, using different digital techniques, beautiful black-and-white images can be created from color digital files. There are many different ways to do this. The lessons below are just a few of the more popular ways that are possible. Besides Photoshop, there are a large number of software solutions that offer varying degrees of control over the process. For the Mac there is iPhoto, Aperture, Lightroom, Graphic Converter, Photoshop Elements, GIMP, and many more. For PC there is Picasa, Lightroom, Graphic Converter, Photoshop Elements, Photoshop Album, GIMP, and others. All of these should be investigated if you love black and white and don't already have one of the other software programs. There is also a wide variety of plugins for Photoshop as well. It would take an entire book just to cover all of the different ways to convert a color image into a black-and-white one. The following lessons should get you started.

Special Color Printing Software

Gimp-Print Gimp-Print started off back in 1999 as a plug-in for The Gimp, the open-source image-editing program mentioned in Chapter 3. This explains the name, but Gimp-Print has now evolved into an independent printing package installing The Gimp is not required. Continuously upgraded by a group of like-minded volunteers and software tinkerers, Gimp-Print is a package of high-quality printer drivers for Linux, BSD, Solaris, IRIX, and other UNIX-like operating systems (and now Mac OS X, which ships with Gimp-Print). Our goal is to produce the highest possible output quality from all supported printers, says the Gimp-Print team. To that end, we have done extensive work on screening algorithms, color generation, and printer feature utilization. We are continuing our work in all of these areas to produce ever-higher-quality results, particularly on the ubiquitous, inexpensive inkjet printers that are nonetheless capable of nearly photographic output quality. Additionally, Gimp-Print...

If youve never encountered it before the levels control will amaze you with its ability to make a flat lifeless shot

Any half-decent photo-editing package includes a levels tool. Here, we're using the free, open-source package the Gimp. First of all, select the levels tools from Tools Colour Tools Levels. Since the tonal range and its adjustment are so important, there are two standard tools to adjust it that are available in any decent photo-editing application this includes the free open-source Gimp, Paint Shop Pro Photo and Photoshop.The simplest and quickest is called the levels control. Its primary purpose is expanding the tonal range evenly across the full width available. At its simplest, it requires that you adjust only two sliders. See the walkthrough on pi 15 for how to use it. You'll note that we've only talked about the overall intensity of pixels here in fact, an 8-bit colour image is made up of three 8-bit values between 0 and 255 to represent red, green and blue components of the picture. You can alter the levels individually in most software, but usually you'll end up with a hideous...

Colour fringes are one of those annoying artefacts that wont show up on your cameras screen but are gratingly obvious

But when the image is printed at 100 , you'll see the fringes at the edges of the neck, and around the droplets of water falling from the swan's beak. Using the Gimp, we can reduce them so they're almost impossible to see. The basic method is to use the hue saturation tool. But since the fringes are red and the swan's beak contains a lot of red too, we need to be more sophisticated. First click the lasso tool in the Gimp's tool palette.

If you dont have any professional calibration tools or a copy of Photoshop its still possible to calibrate your monitor

Black point test We're using the Gimp ( for this example, as it's free. Create a new image with the same dimensions as your desktop and fill it with black, then create a new square somewhere within the image, out of the way of your monitor's OSD. With this square selected, open the Color Curves dialog and drag the starting point of the line from the bottom-left (0,0) position up to the (0,5) position. Click OK - the colour of your box will change to a slightly lighter colour, although this may not be visible at this point. Save the image. Open your monitor's OSD, reset to factory settings and choose the colour temperature 6,500K, or choose Native, Natural or your monitor's equivalent. Set the contrast level to 100 and then gradually decrease the brightness until the coloured box is only just visible over the black background. white point test Open the Gimp again and create another canvas the size of your desktop, but this time colour it grey. Create a medium-sized box...

Analog to digital

Computers are clever machines but they have difficulty handling images in this form. So, in order for the photograph to be used in an image manipulation program like Photoshop Elements or Paint Shop Pro, it must be changed to a digital file. The file describes the image as a series of discrete colors and tones. When we scan a negative or slide we make this conversion by sampling the picture at regular intervals. At each sample point, a specific color is chosen to represent the hue found in the original. In this way, a grid of colors is put together to form a digital version of the continuous tone original (see Figure 11.7).

Side Lighting

Side lighting also causes one other anomaly. Since no face is perfectly symmetrical, creating high-contrast lighting can completely change the look of the subject. You can try this with an image manipulation program such as Adobe Photoshop. Scan in a picture of yourself or a friend and divide the images down the middle in the program, Save each file

Digital Storage


An eye for an eye

3 With the eye selected, choose Copy (Edit> Copy) and then click on the image to which you would like to add the open eye. Click Paste (Edit> Paste) to drop the open eye into the image. In most editing applications the eye will automatically appear as a new layer, but you may need to use a Paste Into command with some software (such as GIMP). There are loads of image-editing packages on the market, ranging from the ones you get pre-installed on your computer with your operating system to premium-priced products such as Adobe Photoshop. For this exercise, the key tools you'll need are a selection tool (it doesn't matter too much which one you use), an eraser tool (to tidy up the result) and layers so you can work on the eyes separately. Layers might not appear in pre-installed software, but you will find that all the commonly available, modestly priced image-editing applications will have the tools you need, most notably Adobe Photoshop Elements and Corel Paint Shop Pro. However,...