Normally, colours would change if you convert from RGB to CMYK...My problem is that I'm experiencing [color shifs] when I change the colour mode from CMYK to RGB.. this makes no sense to me. |
In a conceptual nutshell:
Here are four numbers, each less than or equal to 100:
20, 15, 5, 8
Here is the product of those four numbers:
12,000
Please convert that exact product to three factors, each less than or equal to 256:
128, 3.75, 25 ?
15, 20, 40 ?
60, 8, 25 ?
...?
Just because the CMYK color gamut is more generally considered a "subset" of the RGB gamut than the other way 'round, doesn't mean there is only one set of values that will "convert" between the two color models. There simply is no precise 1:1 correspondence between the two color models, without an intermediary conversion to and from an absolute color space; which is where color management and device calibration comes in.
So things like color management rules, device calibration, file format--even the angle at which you are viewing different portions of your LCD monitor-- still come into play.
And you do realize, don't you, that you posted your screenshots on a web page. Web pages don't display CMYK images. Your "CMYK" screenshot is an RGB image, being viewed by others on RGB monitors, with who knows what settings and conditions.
JET
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