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8-bit, 10-bit, 32-bit, and more

Now, let’s look at 10-bit blue. A knob to adjust blue on a 10-bit device might look like this:

Wow! The knob now goes to 1023! This doesn’t mean that 10-bit blue is more saturated; it means that there are more steps to get to the maximum saturated shade of blue. A 10-bit value of 1023 is potentially the same color as the 8 bit value of 255. If you look at the two knobs in the pictures, you’ll see that the middle points of the knob are 128 and 512, and these values also represent the same color. There are just a LOT more subtle shades of blue selectable on the 10-bit knob. Again, there are no intermediate steps; no decimal values. There are 1024 distinct “clicks” on the knob.

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