| Author | Thread |
|
|
10/27/2005 06:57:23 PM · #1 |
(Three acronyms in the subject line, must be a record)
Anyway, because of something on another thread regarding the whiteness of white in the 'light on white' challenge, and having an obsessive mind, I felt compelled to take the PS eyedropper tool to measure a few points on my image.
What's confusing me is this. My RGB reads as follows;
R: 178
G: 178
B: 178
Which is fine. But the CMYK reading is;
C: 35%
M: 26%
Y: 26%
K: 0%
Why is this measurement saying theres more Cyan? I was expecting to see '33%' three times.
|
|
|
|
10/27/2005 07:05:21 PM · #2 |
It's something in your CMYK color preference setup, and/or your monitor setup. Your's has a profile or preference to interpret grays as "cool" with a little more cyan than the other colors, and a low level of black generation since there's none at all in this reading.
Many colors will not translate to CMYK colorspace at all -- its gamut is something like 7000 colors, compared to 16.7 million in 8-bit RGB.
That said, I have my Info Window set to Grayscale and CMYK, because most of my experience is in prepress, and I can't turn the RGB numbers into colors in my head the way I can CMYK or a gray percentage. |
|
|
|
10/27/2005 07:08:26 PM · #3 |
Ah, okay - Thanks for the explanation.
Makes sense for pre-press. But for web-based stuff I'm better off looking at the RGB readings? |
|
|
|
10/27/2005 07:10:14 PM · #4 |
| P.S. Yes, in my colour preferences my CMYK working space is 'Euroscale coated v2' |
|
|
|
10/27/2005 07:24:58 PM · #5 |
| just curious, why would anyone use CMYK? for display and most methods of getting prints (like from websites) isn't RGB the standard? |
|
|
|
10/27/2005 07:34:35 PM · #6 |
Originally posted by adamweb:
just curious, why would anyone use CMYK? for display and most methods of getting prints (like from websites) isn't RGB the standard? |
CMYK = brochures, magazines, etc.
|
|
Home -
Challenges -
Community -
League -
Photos -
Cameras -
Lenses -
Learn -
Help -
Terms of Use -
Privacy -
Top ^
DPChallenge, and website content and design, Copyright © 2001-2025 Challenging Technologies, LLC.
All digital photo copyrights belong to the photographers and may not be used without permission.
Current Server Time: 09/11/2025 05:38:00 PM EDT.
