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Image sensors record only the gray scale a series of 256 increasingly darker tones ranging from pure white to pure black. Basically, they only capture brightness. 0 10 20 30 40 50 60 70 G0 90 100 The gray scale contains a range of tones from pure white to pure black. 0 10 20 30 40 50 60 70 G0 90 100 The gray scale contains a range of tones from pure white to pure black. How then, do sensors capture colors when all they can do is record grays The trick is to use red, green, and blue filters to...
Image Sensors and Pixels
Digital photographs are made up of hundreds of thousands or millions of tiny squares called picture elements, or just pixels. Each of these pixels is captured by a single photosite on the image sensor when you take the photo. Like the impressionists who painted wonderful scenes with small dabs of paint, your computer and printer can use these tiny pixels to display or print photographs. To do so, the computer divides the screen or printed page into a grid of pixels, much like the image sensor...
MPix
Your photofinisher can arrange to have your slides or negatives scanned onto a Kodak FlashPix CD, or a Picture Disk Plus floppy disk. The PictureWorks FlashPix Format Viewer is included on every Kodak FlashPix CD so you can view the pictures and make minor picture enhancements. To view FlashPix images on the Web, you need a FlashPix viewer. To edit and save FlashPix images with Photoshop you need the FlashPix plug-in. Both are available in The Digital Photographer's Toolbox. The FlashPix format...
Scanning Formats
This is something of a made up category since it has only a single entry Photo CD disks. Although film and print scanners have become very common and are widely used to scan images for storage on CD disks, the Photo CD from Kodak was the first widely available such format. Kodak originally hoped that these discs would catch on in the consumer market. The plan was to have mom or pop select the best photos from their vacation and have Kodak scan them onto a CD disc. The family would then gather...
What Kinds of Digital Photos are being Taken
People like David Grenewetzki think nothing of strapping their new digital camera to a remote control airplane, or even a rocket, and launching it into the wild blue yonder to capture photos from a bird's-eye view. Until camera prices come way down, you might want to find other applications for your new camera. What could be more fun than strapping your new camera onto a remote control airplane for pictures from hundreds of feet up Check out David's site for lots more on this and rockets too....
