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 IERGB2CMYK(ieRGB) bring wrong valus ?		  New Topic  Reply to Topic
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klausdoege

Germany
389 Posts
Posted - Aug 09 2011 :  15:54:53  Show Profile  Reply
Hello,
the function mycmyk:=IERGB2CMYK(ieRGB); bring wrong values with me.
RGB(255,0,255) shows CMYK(188,0,255,255) and
RGB(0,255,255) shows CMYK(91,255,206,255).
Photoshop shows following values:
RGB(255,0,255) = CMYK(33,78,0,0)
RGB(0,255,255) = CMYK(57,0,13,0)
Do I make somewhat wrong, or is another mistake here?

Klaus

fab

1310 Posts
Posted - Aug 10 2011 :  00:10:06  Show Profile  Reply
There are several algorithms to convert from RGB to CMYK (and the same RGB color can be represented in different combinations of CMYK colors). Also Photoshop CMYK ranges are different than ImageEn CMYK ranges (also ImageEn uses "inverted" representation).
It is just different, not wrong.
ImageEn uses Windows color management to convert from RGB to CMYK and viceversa.
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klausdoege

Germany
389 Posts
Posted - Aug 10 2011 :  02:28:27  Show Profile  Reply
Thank you for the Information.
My mistake sorry.

Klaus
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