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Old 10th October 2006, 18:26   #1  |  Link
Ignus2
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Join Date: Dec 2005
Posts: 250
Tweak: HSV - RGB conversion difference between programs

Hi!

I don't seem to get it:
I have read the docs of Tweak here (Google cached, as avisynth page is down):
http://www.google.com/search?q=cache...u&ct=clnk&cd=1

I used the color picker of GIMP to select a color from the skin of the woman, then I got these values:
R: 200 (from 0-255 range)
G: 79 (from 0-255 range)
B: 34 (from 0-255 range)

GIMP also gave me HSV:
H: 16 degree (from 0-360 range)
S: 83% (from 0-100 range)
V: 78% (from 0-100 range)

Then I typed in the RGB values to Windows Paint color selector, and it gave me:
H: 11 (from 0-239 range)
S: 170 (from 0-240 range)
V: 110 (from 0-240 range)

As you can see, they are totally different, if I compare them. 83% according to GIMP should be around 200 for Windows Paint, no?

AND the REAL trouble is, that the docs of Tweak, also use TOTALLY DIFFERENT values for selecting the skin of the girl.
It uses Hue range 105-138 (from 0-360) or Sat range 45-75 (from 0-150) to achieve the selection, which is nowhere near the values what GIMP and Paint gives me.

Can someone clarify as what conversion does Tweak use, and what program can I use to select color values, which I can then supply to Tweak?

--
Thanks in advance,
B.
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