RGB seperations

MR
Posted By
Michael Rogers
Aug 8, 2003
Views
273
Replies
2
Status
Closed
I’m restoring an old toy box with Photoshop. Upon scanning it’s come to my attention that the at least one of the colors of the 3 color printing is slightly out of regestration with the rest.

Is there a way in photoshop 6.0 to do the seperations and realign?

Mike
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MR
Mike Russell
Aug 8, 2003
Michael Rogers wrote:
I’m restoring an old toy box with Photoshop. Upon scanning it’s come to my attention that the at least one of the colors of the 3 color printing is slightly out of regestration with the rest.

Is there a way in photoshop 6.0 to do the seperations and realign?
Mike

Absolutely, though it will take some experimentation.

If the colors are Cyan, Magenta, and yellow on a white background. Just convert to CMYK, separate the colors, clean up the dots a little using Levels, realign, and recombine.

The same procedure applies for other colors, but you will need to experiment to cleanly separate the colors, or at least the one that is out of alignment. Your friends here may well be Lab mode, used to create a mask for a particular set of color dots, or Select Color, which allows you to select a particular color range.

—

Mike Russell
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MR
Michael Rogers
Aug 8, 2003
Thanks guys, it worked like a charm.

Best,
Mike

edjh wrote:
Mike Davis wrote:
It’s easy. If image is a background layer, double-click and convert to a regular layer (not "background") then select the move tool (press
V). Select the RGB channel you’d like to move (remaining in composite
view :all colors visible), zoom way in and using the arrow keys you can move that color in one pixel increments.

Good luck

Actually it’s easier if you DON’T convert Background to a layer. Then you don’t need to do a Select All on the channel; just choose and nudge.
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