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Bitmap(or BGRAbitmap) invert color, contrast 11 years 5 months ago #4215

  • ExDatis
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How to: invert color, set contrast.
Thank you very much,
Regards!
p.s. I tried to find(fast) but unsuccessful...

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Bitmap(or BGRAbitmap) invert color, contrast 11 years 5 months ago #4217

  • ExDatis
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Amazing BGRAbitmap!!! Wonderful!
p := myBGRAbmp.Data;//p -> pbgrapixel
for n := myBGRAbmp.NbPixels-1 downto 0 do
begin
p^.red := not p^.red; //invert red canal
p^.green:= not p^.green; //invert green canal
p^.blue:= not p^.blue; //invert blue canal
inc(p);
end;
So easy....
BGRAcontrols, team, thank you very much!
Regards!
p.s. Idea: wiki.freepascal.org/BGRABitmap#Direct_access_to_pixels

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