Strange behaviour in Photoshop CS
Strange behaviour in Photoshop CS
- Subject: Strange behaviour in Photoshop CS
- From: Juanje Luzardo <email@hidden>
- Date: Tue, 10 Feb 2004 12:49:45 +0000
Hi,
I'm very confused with the new histogram in PS CS. You can try a little
example:
Fill a AdobeRGB document with a gradient (128-128-128 to 170-170-170),
you get a medium tone image, with no whites and blacks. Convert to
AdobeEuroscalecoated v2 (black point on). If you see the histogram
palette in cmyk mode you get clipping in lights. In luminosity mode you
get a more real data.
The trouble: i edit all my photos to Press in rgb mode all the
workflow, i analize the whites and blacks in the histogram in rgb mode,
reading the rgb and cmyk values in the info palette. When i convert to
cmyk the values change a lot in the cmyk histogram (cmyk mode), getting
clipping whites when there is no white in the original photo! If a
change to luminosity mode i get a more accurate histogram, but i think
luminosity is lighter that the full cmyk mode. What am i missing? Can
anyone to help me to understand the histogram behaviour in PS CS?
Thanks in advance
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