The color-spaces tag has no wiki summary.
23
votes
8answers
5k views
What is the difference between CMYK and RGB? Are there other color spaces I should know?
I'm a photographer, who dabbles in graphic design from time to time as well. What are the differences between the various color spaces?
8
votes
2answers
731 views
How to calculate other colors with the same perceived lightness as a given gray value?
This is related to a question I asked on tex.stackexchange, which has a color aspect. The result of that question is the following image:
I have drawn a series of gray squares on the left, with a ...
7
votes
3answers
660 views
Choosing colors that work well on projectors
When specifying colors for use in a software user interface, what's the best way to ensure that those colors will look acceptable on all common display technologies: CRT, LCD, and in particular ...
7
votes
1answer
81 views
Is there a metric for “apparent” chroma?
I'm not sure this is the right place to ask, but is anyone aware of a metric for apparent chroma?
Now I understand that "chroma" and "chrominance" are very overloaded terms, so to clarify, I ...
6
votes
6answers
2k views
RGB and CMYK: Why both?
Any of you who have at least little experience with graphic design software, photography or professional printing, must have -almost undoubtedly- have gone through this: 'the struggle' of RGB and CMYK ...
6
votes
2answers
230 views
How do you avoid bands of prominent color in gradients?
So this is more scientific visualization than graphic design, but I think the theory is the same. In colormaps used for visualizing data, there are often bands of color that stick out when they ...
5
votes
4answers
899 views
how to keep printed documents accurate color reproduction
Is there a way to widen the gamut of a cmyk print so that the darks stay dark and the lights stay light? I suspect it has something to do with color space being exported, but I don't know how to ...
5
votes
1answer
110 views
Color loss during colorspace conversions
Why are conversions from a smaller colorspace to a "larger" one often lossy? How can a smaller gamut have colors that cannot be represented in a larger (overlapping) gamut?
5
votes
2answers
1k views
Why are colors shifting when converting from CMYK to RGB in Photoshop?
I have an image that is CMYK and I have tried to convert it to RGB so that I can edit the colour of the image. However it won't let me work in 32 bit and asks me to convert the image to 16 or 8 bit to ...
3
votes
3answers
71 views
Should I scale an image first, or index it?
I have an image, it's the Backtrack_5_PitchBlack.jpg found at http://www.backtrack-linux.org/screenshots/, and I'd like to get it down to 640*480 for a Grub4DOS splash screen.
Unfortunately, this also ...
3
votes
1answer
60 views
Perceptual colour space as working space
We know from after images that violet-yellow, blue-orange and green-magenta are perceptual complementaries.
When I am designing I would like a hue wheel that reflects these perceptual ...
2
votes
1answer
71 views
How to get RYB complementary colors in RGB imaging software
I am looking for a way to get RYB complementary colors in software. This means, complementary color pairs I am looking to get would be:
red - green
yellow - violet
blue - orange
However, when ...
2
votes
1answer
641 views
Tools to convert from 16-bit RGB to 24-bit RGB and vice versa
Are there any image editing or research tools, commercial or otherwise which will allow me to:
map colors (images) from 16-bit RGB (565) space to 24-bit RGB (888) space or vice versa
save files in ...
2
votes
2answers
144 views
Photoshop Relative Colormetric conversion inconsistent?
The Photoshop relative colormetric conversion seems to be inconsistent.
I'm converting from Adobe RGB to sRGB. Settings are as follows:
I open the same file twice and run the same conversion. The ...
2
votes
1answer
735 views
Photoshop: Should I use my monitor's color profile (under proof setup/colors) when designing for desktop?
The title says most of it...not sure whether I should set Photoshop to Monitor RGB color profile and set "show proof colors" to true when working on desktop layouts. I notice that Firefox uses my ...
1
vote
3answers
421 views
Laptop screen for digital design
I am searching for a laptop with a screen that is suitable for digital design purposes
What I am particularly concerned about is a statement made by a poster (on here):
(the objective is to) make ...
0
votes
2answers
6k views
Indesign RGB color space
Is there a way to set the colorspace to sRGB in indesign?
I remember doing this in indesign cs3 years ago and i can't recall how to do this for cs5.
