Cant make a background

Question

When I try to make a color change with black and white colors on 16 bit, the color shift has noticable edges

davescm · Accepted Answer

The answer was option b, it wasn't an issue with the monitor but it really feels odd that there isnt enough color to make the shift better. I whish there was a way to add more colors, anyways thank you.

The monitor is not faulty, but the issue is caused by using an 8 bit/channel monitor. There just aren't enough steps at the darker end of the range to avoid the stepping. Adding noise (dither) hides the impact by taking the sharp edges off the steps.

Dave

davescm · Answer

Check with the eyedropper and info tool whether those steps (called banding) are in the document or just the on screen preview.

Unless you are using a 10 bit/channel monitor, connected via a GPU that supports and is enabled for 10 bits/channel and have enabled 30 bit display in Photoshop Preferences > Performance, then when using 16 bits/channel in the document the preview you are looking at will be restricted to your display chain's 8 bits/channel and therefore still appear to step.

Dave

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