Adobe PHOTOSHOP 6.0 Manual page 199

To merge channels:
Open the grayscale images containing the
1
channels you want to merge, and make one of the
images active.
You must have more than one image opened for
the Merge Channels option to be available.
Choose Merge Channels from the Channels
2
palette menu.
For Mode, choose the color mode you want to
3
create. If an image mode is unavailable, it is
dimmed. The number of channels appropriate for
the mode appears in the Channels text box.
4 If necessary, enter a number in the Channels
text box.
If you enter a number that is incompatible with the
selected mode, Multichannel mode is automati-
cally selected. This creates a a multichannel image
with two or more channels.
5 Click OK.
6 For each channel, make sure the image you
want is open. If you change your mind about
image type, click Mode to return to the Merge
Channels dialog box.
7 If merging into a multichannel image, click
Next, and repeat step 6 to select the remaining
channels.
Note: All channels of a multichannel image are
alpha channels.
When you are finished selecting channels,
8
click OK.
The selected channels are merged into a new image
of the specified type, and the original images are
closed without any changes. The new image
appears in an untitled window.
Note: You cannot split and recombine (merge) an
image with spot color channels. The spot color
channel will be added as an alpha channel.
Deleting channels
You may want to delete spot or alpha channels you
no longer need before saving an image. Complex
alpha channels can substantially increase the disk
space required for an image.
To delete a channel with no confirmation:
Select the channel in the Channels palette.
1
Do one of the following:
2
Alt-click (Windows) or Option-click (Mac OS)
•
the Trash button ( ).
Drag the channel name in the palette to the
•
Trash button.
Choose Delete Channel from the Channels
•
palette menu.
To delete a channel with confirmation:
Select the channel in the Channels palette.
1
Click the Trash button ( ) at the bottom of the
2
palette. Then click Yes.
ADOBE PHOTOSHOP 6.0 189
User Guide