Copying an Image Object with the Help of a Selection and Inserting It into Another Image the Procedure

The Copy and Paste functions in the Edit menu can be used to easily transfer image objects from one image to another image. To copy and paste image objects, the objects must be selected first. Then the border attributes can be set by choosing Select > Feather and entering a value. The Edit > Copy function pastes the selection into the global clipboard of your computer. The Edit > Paste function pastes the selection on another image (or in another application, such as a word processing program).

Here are the steps to copy an image object with the help of a selection and inserting it into another image:

• Open the fenice_base.xcf and moon.png images from the SampleImages folder on the DVD.

• The following option offers the possibility to work precisely, but it isn't essential: In the image moon.png, use guides to select a rectangle around the moon. The guides should be used as tangents to the moon's circumference. You can drag the guides into the image by clicking in the rulers while holding the left mouse button. To subsequently correct the guides, there is a setting in the Move tool.

• Draw a selection of the moon using the Ellipse Select tool (with the help of the guides).

Since version 2.4, you can transform and adapt selections that were made with the Rectangle Select and Ellipse Select tools By holding the left mouse button, you can grasp the visible edges or corners of the enclosing rectangle (transformation frame) to adjust to the desired size and form. In the meantime, you can work with other tools. When returning to the select tool, you simply click into the selection and the transformation frame is available again. The same is true for the Crop tool.

Figure 3.96

The transformation frame around the selection in the image and the extended tool settings of the Ellipse Select tool (Image courtesy of NASA)

• Reduce the feathering in your selection to about 5 px (Select > Feather).

• Access the Edit > Copy function and copy the object within the selection— the moon—to the clipboard. Then close the moon.png image.

• Switch to the fenice_base.xcf image.

• Set the top layer to active in the Layers dialog.

• Choose Edit > Paste. Since the top layer is active, the content from the clipboard - still the moon - is inserted on top of this layer.

• Accept the pasted layer as a new layer by right-clicking and selecting New Layer. Call this layer moon.

• Position the layer and use the Scale tool to enlarge it until you're happy.

• Now transform the moon into a sickle. To do this, first drag an elliptic selection with strong feathering (about 200 px) partially over the moon. Choose Edit > Clear to delete the contents of the selection. Select Select > None to delete the elliptical selection. Reduce the opacity of the moon to about 75% in the Layers dialog.

• In the Layers dialog, select Addition or Screen in the Mode drop-down menu.

As you can see, most of the work steps are slowly becoming routine as you repeat them. So far, however, we haven't used any Mode options. The Normal mode produces overlays that act as you would intuitively expect them

Figure 3.96

The transformation frame around the selection in the image and the extended tool settings of the Ellipse Select tool (Image courtesy of NASA)

to: covering the object without changing the representation. Sometimes, however, it is necessary to change the manner in which the superimposed layer and the background layer are "blended" in order to achieve a specific effect. Have a look at the following section to learn more about Mode options.

Figure 3.97

The selection of blending modes in the Layers dialog. The Addition mode is applied to the moon layer of the image.

Digital Cameras For Beginners

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