Joel de Guzman wrote:
Matt Gruenke wrote:
Joel de Guzman wrote:
I disagree. A color space is a tuple of numbers. It is concerned with data and layout as far as I can see. That is the very definition of "tuple".
That's a color (or pixel value).
A color space provides the semantics of these numbers, possibly including how they are converted to other color spaces. This may include its basis, CIE primaries, transfer function, gamut, etc. (For more information, here's a good starting point: http://www.poynton.com/notes/colour_and_gamma/ColorFAQ.html )
A pixel format establishes the mapping between channels of an image (i.e. color, pixel value, etc.) and components of a color space.
Now I see the confusion. There are overlaps in the definition of colors and color-spaces of course. Did you think they were orthogonal? See: http://tinyurl.com/18r for the definition of color-spaces.
tinyurl mistake again! One more try: http://tinyurl.com/veebq Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net