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  Changing a color on a bitmap with Color matrix  (Read 1853 times)
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Offline darrinps

Senior Newbie




Java games rock!


« Posted 2012-03-03 05:28:31 »

OK, I know how to change red, blue, and green to other colors using a ColorMatrix, but how do go about using it to change black to white for example?

Let's say I have a bitmap with a bunch of black dots on a mostly white background that also has some other colors on it. I do not want to touch the other colors, but I need to convert the black pixels to white but I cannot see how that can be done with the ColorMatrix.

Can it, and if so how?  If not, how can you do this efficiently? I know that you can do a setPixel on a Bitmap, but it is horribly slow.

Thanks!
Offline ra4king

JGO Kernel


Medals: 345
Projects: 3
Exp: 5 years


I'm the King!


« Reply #1 - Posted 2012-03-03 07:18:02 »

I've never heard of a ColorMatrix or Bitmap class in Java2D......

Offline Roquen
« Reply #2 - Posted 2012-03-03 07:26:25 »

Black will always rotate to black.
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