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Photo negitive of a bitmap

what operation can i performe on a bitmap, in C#, that
will give the visual effect of a photo negitive? I have a
bitmap on a form, and when people mouse over the bitmap,
i'd like all light colors to be dark and all dark colors
to be light.

thanks,
JOhn
Nov 13 '05 #1
1 1659
I haven't seen a built-in function to do that (although I haven't
looked). You can use code presented on this page to "invert" or make
a negative of a picture.
http://www.codeproject.com/cs/media/...cfilters11.asp

Mike Mayer

"john" <jo**@john.com> wrote in message
news:01****************************@phx.gbl...
what operation can i performe on a bitmap, in C#, that
will give the visual effect of a photo negitive? I have a
bitmap on a form, and when people mouse over the bitmap,
i'd like all light colors to be dark and all dark colors
to be light.

thanks,
JOhn

Nov 15 '05 #2

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