Photoshop Jargon: Pixel Depth

“Pixel depth” refers to the number of tones a pixel can display, determined by the bits used to display the pixel. One bit can contain one color (black), four bits can contain any combination of the binary numbers 1 and 0, so 16 shades are possible (0000, 0001, 0011, 0010, etc.). Photoshop works with 8, 16 and 32-bit images. In 32-bit images, only 24 bits are available (the others are reserved for masking and other functions) but each pixel can still produce 16.7 million colors.

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  1. This is a very cool undertaking. As a Photoshop veteran of many years, I’ve established certain workflows that simply work. What that means though is that there are plenty of things about Photoshop that I’ve never bothered to really understand. The information here is really very good because it fills in the blanks with things that I used daily but may not understand completely. And the more you really understand, in detail, the better you are really able to use the tools in Photoshop. So, I just wanted to say thanks. There are plenty of people who learn only enough to get their job done, but don’t bother to learn any more than that. This information will be helpful to everyone I believe.

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