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additional color layer in channels palette?

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  #1  
Old 06-26-2008, 06:10 PM
danii danii is offline
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Question additional color layer in channels palette?

I worked on a merchandiser from a client and the photo used had an extra red layer in the cmyk channels palette to color seats and some smaller details of a car red instead of yellow. There was only 1 layer in the layers palette. It seemed that they used a certain red (like you can pick from the color libraries). I was a bit confused because adding an alpha channel usually masks in red as well. So, I wonder if it is possible - but most of all how you do it - adding a color channel. And then... why would you do it there and not in the layers palette. Anyone any idea of how and why?

Maybe worth mentioning...
The photo is a tif file and saving it as jpg results in losing this red channel information, which means that the seats turned out yellow again. That's how I found out that there was an additional 'red' layer in the channels palette.

Thanx,
Danii
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  #2  
Old 06-26-2008, 06:33 PM
pixelzombie pixelzombie is offline
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Re: additional color layer in channels palette?

sounds like they are using a spot channel...
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  #3  
Old 06-26-2008, 07:40 PM
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cricket1961 cricket1961 is offline
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Re: additional color layer in channels palette?

Yeah. Its a bump plate to boost the reds when printing. They use it for blues and other hard to achieve saturated colors. Sometimes black also.

Chris
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Old 06-27-2008, 05:59 AM
danii danii is offline
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Re: additional color layer in channels palette?

Thanks for your replies! I'll try the spot channel on one of my pics to see if it works. I'll let you know.
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Old 06-27-2008, 06:52 AM
danii danii is offline
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Re: additional color layer in channels palette?

Yes! That's it! Just tried it. I simply forgot that you can colorize with the spot channel as well. Most of the time I use a 'solid color adjustment layer' and put the blending mode to color. Thanks again.
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