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Bit depth is a measure of the number of shades or tones between solid (of any color) and no tone at all. Ideally we are talking about this “solid” being a very dark color (like black). When we refer to an 8-bit image, the bit-depth (or number of tones including solid color and no color) [...]

We have been warned over-and-over again in Photoshop tutorials about the perils of “gappy” histograms produced by editing images in 8-bit depth. O, the pixel carnage! Think of all the data loss represented by histograms containing uneven tones and gaps between them. We all know how absolutely irresponsible it is to produce files with gaps [...]

Everybody’s body is kind of… unbalanced. Each person has a pair of arms, legs, ears, eyes, and so on. By now you probably realize that each of the pair of items you have are slightly different in some way. The ring you wear on your finger on one hand doesn’t fit the same way on [...]

Normally, your eyes don’t see anything in just one dimension. But pictures, whether on a monitor or in print, represent only one view, not two, like your eyes see.
Close one eye and look across the room. Now open it again and see the difference.When your eyes observe a scene, your brain merges two slightly different [...]

 Sound like a silly question? Just look at what your computer screen calls white compared to a sheet of paper from your printer. Now look at the newspaper today. How about that white shirt in your closet. All slightly differing shades of white. 
Why is this important? Because in color management all measurement is based on [...]