To Duplicate A Channel In An Image; To Duplicate A Channel In Another Image; To Split Channels Into Separate Images; To Merge Channels - Adobe PHOTOSHOP CS2 User Manual

Type a name for the duplicate channel.
3
For Document, do one of the following:
4
• Choose a destination. Only open images with pixel dimensions identical to the current image are available. To
duplicate the channel in the same file, select the channel's current file.
Choose New to copy the channel to a new image, creating a multichannel image containing a single channel. Type
•
a name for the new image.
5 To reverse the selected and masked areas in the duplicate channel, select Invert.

To duplicate a channel in an image

1 In the Channels palette, select the channel you want to duplicate.
Drag the channel onto the New Channel button
2

To duplicate a channel in another image

In the Channels palette, select the channel you want to duplicate.
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2 Make sure that the destination image is open.
Note: The destination image does not have to have the same pixel dimensions as the duplicated channel.
Do one of the following:
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• Drag the channel from the Channels palette into the destination image window. The duplicated channel appears
at the bottom of the Channels palette.
Choose Select > All, and then choose Edit > Copy. Select the channel in the destination image and choose Edit >
•
Paste. The pasted channel overwrites the existing channel.

To split channels into separate images

You can split channels of flattened images only. Splitting channels is useful when you want to retain individual
channel information in a file format that doesn't preserve channels.
To split channels into separate images, choose Split Channels from the Channels palette menu.
The original file is closed, and the individual channels appear in separate grayscale image windows. The title bars in
the new windows show the original file name plus the channel. You save and edit the new images separately.

To merge channels

Multiple grayscale images can be combined as the channels of a single image. The images you want to merge must
be in Grayscale mode, have the same pixel dimensions, and be open. The number of grayscale images you have open
determines the color modes available when merging channels. For example, if you have three images open, you can
merge them into an RGB image, if you have four images open, they can become a CMYK image.
If you are working with DCS files that have accidentally lost their links (and so cannot be opened, placed, or printed),
open the channel files, and merge them into a CMYK image. Then resave the file as a DCS EPS file.
Open the grayscale images containing the channels you want to merge, and make one of the images active.
1
You must have more than one image open for the Merge Channels option to be available.
Choose Merge Channels from the Channels palette menu.
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at the bottom of the palette.
ADOBE PHOTOSHOP CS2 441
User Guide