Adobe 23101335 User Guide - Page 197

ADOBE PHOTOSHOP 6.0 187 User Guide Selecting and editing channels You can select one or more channels in the Channels palette. The names of all selected, or active, channels are highlighted. Any editing changes you make apply to the active channels. To select a channel: Click the channel name. Shift-click to select (or deselect) multiple channels. To edit a channel: Use a painting or editing tool to paint in the image. Paint with white to add to the channel; paint with black to remove from the channel; paint with a lower opacity or a color to add to the channel with lower opacities. Managing channels (Photoshop) You can rearrange channels, duplicate a channel within or between images, split a channel into separate images, merge channels from separate images into one new image, and delete alpha and spot channels when you're finished with them. Changing the order of channels The default color channels normally appear at the top of the Channels palette, followed by the spot color channels, and then the alpha channels. You cannot move the default channels, but you can rearrange spot and alpha channels to suit the way you work. Spot colors are overprinted in the order they appear in the Channels palette. To change the order of alpha or spot channels: Drag the channel up or down. When the heavy black line appears in the position you want, release the mouse button. Note: You can move spot channels above the default color channels only if the image is in Multichannel mode. You cannot move alpha channels above color channels. Duplicating channels You might duplicate an image's channel to make a backup before editing the channel. Or you might duplicate alpha channels to a new image to create a library of selections to load into the current image one by one-thus keeping the file smaller. If you are duplicating alpha channels between images, the channels must have identical pixel dimensions. (See "Creating new images" on page 100.) Note: You cannot duplicate a channel to a Bitmap-mode image. To duplicate a channel using the Duplicate command: 1 In the Channels palette, select the channel to duplicate. 2 Choose Duplicate Channel from the Channels palette menu. 3 Type a name for the duplicate channel. 4 For Document, do one of the following: • Choose a destination. Only images with pixel dimensions the same as the current image are available. To duplicate the channel in the same file, select the channel's current file.