Showing posts with label color. Show all posts
Showing posts with label color. Show all posts

Bit Depth - color precision in raster images


Bit depth diagram

Last time we have been talking about encoding color information in pixels with numbers from a zero-to-one range, where 0 stands for black, 1 for white and numbers in between represent corresponding shades of gray. (RGB model uses 3 numbers like that for storing the brightness of each Red, Green and Blue components and representing a wide range of colors through mixing them). This time let's address the precision of such a representation, which is defined by a number of bits dedicated in a particular file format to describing that 0-1 range, or a bit-depth of a raster image.

Three great books on color for artists.

In the beginning of the career I've often heard a comment “You've got the colors wrong” or just “Bad colors”. The problem was that more often than not my interest for “What exactly is wrong?” couldn't be satisfied by a distinct answer. Sometimes though, depending on a person, I would receive an explanation about the particular image and a related problem, but what I was hungry for was a more complete picture of how colors work and how to work with colors in images.

Books on color are many. And sadly enough, a lot of them barely scratch the surface or rather suggest a catalog of pre-cooked solutions printed on the very expensive paper. Thus I would like to share today those few which really made it for me – the books I keep recommending whenever someone asks what to read on color.