Questions about the different ways color can be quantified and indexed, like for example GRB, CMYK, Lab or HSB. Also applicable to questions about communicatin between different color spaces.

learn more… | top users | synonyms

1
vote
1answer
32 views

What is the difference between 32 Bit Float and 32 Bit fixed pixel types?

I am using a real time graphics program that offers the following "pixel formats". I understand many of them but one thing I do not understand is the difference between float and fixed. Why would ...
5
votes
0answers
244 views

Embed color profile into a PDF with Inkscape

I'm using Inkscape v. 0.91 under Linux Slackware, compiled from the source with the default options. The printing service I use requires the "ISO Coated v2 300% (ECI)" color profile, which I have in ...
1
vote
0answers
71 views

How do you tint/lighten a color in Sketch?

I can't figure out how to simply add white to a color in Sketch. In Illustrator this is as simple as making it a spot color and dragging the slider in the Color panel, but Sketch only lets you adjust ...
0
votes
0answers
17 views

How do I calculate the location of a complementary colour on the CIE spectrum?

I am trying to answer the following question: Assume that white is at location (0.3, 0.3) on the flat CIE spectrum. Which is the location of the complementary color for the color located at (0.4, ...
0
votes
0answers
32 views

How can we see the difference between RGB and sRGB spaces?

RGB and sRGB I found were said to be two color spaces the former adding some kind of a standard. There are a lot of details about what their difference actually is but how exactly can we spot or see a ...
0
votes
0answers
19 views

Is there a Color Profile or Swatch for CMYK + Photo Magenta, Lt. Cyan?

Was wondering if there was a color book or swatch that could be followed to ensure an accurate output with 6-cart inkjet printers when designing with Illustrator/PS?
0
votes
0answers
73 views

Why are two different CMYK colors printed equally?

With Inkscape, I drew two rectangles, one with CYMK 20/100/0/0 and the other with 2/56/0/43. Since those two colors are different in the CMYK color space, I expected them to print in different colors. ...
0
votes
0answers
102 views

Illustrator changes colors over several days?

I'm working on a web project from a few days ago and every time I open the Illustrator to continue working following day, the colors went much darker. And the colors that I didn't touched from the ...
0
votes
0answers
314 views

Photoshop - Difference between two images

I will try to explain my problem in few words. I have an image representing a person. Thanks to my code I manage to compute the background subtraction and have the resulting shape of the person in HSV ...