PHOTOSHOP - 16 bit value color picker and palette

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  • Updated 1 year ago
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I am editing an RGB file using 16 bit color. The color picker does not support 16 bits, I can only enter values from 0 to 255. I would like color picker and color palettes to support 16 and 32 bit values.
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Mike Jackson

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Posted 3 years ago

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Chris Cox

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I'm guessing that you are using Photoshop.
Photoshop does have a 32 bit color picker for HDR values.
But there is no 16 bit value picker (mostly because you can't actually see that much detail in colors).
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Mike Jackson

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Hi Chris, sorry I was not very clear. Yes, I am using Photoshop, and that I spent 20 minutes with a very helpful support person explaining the situation to me.

I am trying to point out that the conventional color picker, which you get when you double-click to set the foreground color, does not understand 16 bit color even in a 16 bit file. There is a very obscure way to know the 16 bit color values using Window>Info and choosing the drop-down menu next to the eyedropper icon. It turns out that approach has a couple of quirks, which I will not go into.

The reason I want to do this may seem obscure, so let me explain. I am printing an image that comes from the 3d color laser scanner my group is developing. I want to include, alongside that image, a color bar with a set of test colors (this is sometimes called a color wedge) to see whether the printer can reproduce colors accurately. Those test colors are 16 bit values. I would like to generate them inside photoshop, but I cannot do so because the color picker and color palette do not seem to understand 16 bit color properly.

I Hope that helps explain why I am reporting this as a problem. It's surprising to me the capability to operate with 16 or 32 bit color is not included, and I am trying to request that functionality be included.
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Scott Martin

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I'll add that if we could enter L*a*b values to the second decimal in the Color Picker in 32 bit mode that would be useful and perhaps easier to impliment.

Either way, I'm finding there's a need for a greater level of precision for specifying L*a*b values for color science projects... not just in Photoshop but Illustrator as well. Clients needing color matching with a DeltaE of less than 1 for example...
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Oliver Guth

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There is a big need to be more precisely in L*a*b* values. The same in CMYK and RGB !!
So the question is when do we get such a colorpicker to enter a decimal value?
Does anybody know such a tool?
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eartho

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why do you think you need 16 bit numbers for cmyk?
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eartho

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why do you think you need 16 bit numbers for cmyk?
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Oliver Guth

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Hi Eartho,
we print wood and stone design on paper for furniture.
When we do reprinting the same files (days /week month) later
we have to correct them very slightly.(Its below delta E1)
Here we have very often the problem if we put 1 digit more its to green
one digit minus its to red.
And belive me you dont want to buy a furniture were the left door looks differnt to the right. So we really need to adjust the colors behind the decmial point.