Adobe photoshop cs2 사용자 설명서

다운로드
페이지 815
315 
Chapter 12: Selecting
Making selections 
Selecting 
Making a selection is isolating one or more parts of your image. By selecting specific areas, you can edit and apply 
effects and filters to portions of your image while leaving the unselected areas untouched. 
There are separate sets of tools to make selections of bitmap and vector data. For example, to select bitmap pixels, 
you can use the marquee tools or the lasso tools. You can use commands in the Select menu to select all pixels, to 
deselect, or to reselect. 
To select vector data, you can use the pen or shape tools, which produce precise outlines called paths. For 32-bits-
per-channel images, only the pen tools are available to select vector data. You can convert paths to selections or 
convert selections to paths. 
Selections can be copied, moved, and pasted, or saved and stored in an alpha channel. Alpha channels store selections 
as grayscale images. You can add alpha channels to create and store masks. A mask is a selection that protects portions  
of an image from any editing or manipulations you apply. 
Note: To select a specified color or color subset within an existing selection or an entire image, you can use the Color 
Range command. 
See also 
To select all pixels on a layer within the canvas boundaries
Select the layer in the Layers palette.
Choose Select > All.
To deselect selections 
❖ 
Do one of the following: 
Choose Select > Deselect. 
If you are using the Rectangle Marquee tool, the Rounded Rectangle Marquee tool (ImageReady), the Elliptical 
Marquee tool, or the Lasso tool, click anywhere in the image outside the selected area. 
To reselect the most recent selection 
❖ 
Choose Select > Reselect.