How to enter 16 bit RGB value?

A
Posted By
AudioVideo
Sep 19, 2008
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338
Replies
2
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Closed
I created a new blank file with 16 bit per channel mode.

I expect that RGB values would be three 16-bit numbers (0 to 65535) but when I try to manually enter a RGB value, each color is still 0 to 255. Why??
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16-bit bit how rgb value

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F
Freeagent
Sep 19, 2008
In terms of color picker, info palette and histogram it just displays as 8-bit values, for simplicity I assume.

All internal calculations are true 16-bit however.
GH
Gernot_Hoffmann
Sep 20, 2008
Obviously one cannot input in any RGB mode anything else but integers 0…255 (in CS2).
The reason is probably this: besides special tests, a
higher resolution than 8bpc for input data is of no
practical value.
The range for 16bpc is not 0…2^16-1 but 0…2^15+1.
0 is mapped to 0, 128 to 16448 and 255 to 32768.

These values are shown in the InfoPalette by clicking
on the small triangle right to the eyedropper, followed
by choosing 16bpc.

Best regards –Gernot Hoffmann

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