RGB Color Seperation

SK
Posted By
santhosh.kumargv
Mar 22, 2006
Views
274
Replies
2
Status
Closed
Hi,

Can any one please let me know how the color seperation can be done. Any formula. Please let me know.

I also would like to know how to extract a particular color from the color Image. Example: if i want to extract a gray color from the color image.

please let me know any algorithm present or formula given any where.

Thanks in advance for this help.

Santhosh
Related Tags
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K
KatWoman
Mar 23, 2006
wrote in message
Hi,

Can any one please let me know how the color seperation can be done. Any formula. Please let me know.

I also would like to know how to extract a particular color from the color Image. Example: if i want to extract a gray color from the color image.

please let me know any algorithm present or formula given any where.
Thanks in advance for this help.

Santhosh

LOOK AT CMYK separations are done in CMYK (a color space for print) not RGB (a color space for monitors)
to sample a color use the eyedropper, look at the info palette
I
iehsmith
Mar 24, 2006
On 3/22/06 8:47 AM, commented:

Hi,

Can any one please let me know how the color seperation can be done. Any formula. Please let me know.

I also would like to know how to extract a particular color from the color Image. Example: if i want to extract a gray color from the color image.

please let me know any algorithm present or formula given any where.
Thanks in advance for this help.

Santhosh

I see no one has answered you, so maybe my poor attempt will atleast get the ball rolling.

I don’t know what you mean by RGB coloe separation because I think of separations on in print terms, for separate plates. These don’t use RGB though.

I also don’t work in or know algorythms or formulas. You can, however, go into the channels palette and select Split Channels from the flyout menu. This will split/open your image as 3 grey representations, one for each color. You can also merge them back together again from the same menu.

As for "extracting" a color; if you mean sampling/identifying a color you can use the eyedropper tool, click on the color, view it’s properties in the Color palette, or drop it into your swatches to use elsewhere.

I doubt any of this helps though. You probably work with numbers and your brain; I only work with my eyes and hands;)

inez

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