Hi I'm trying to convert some jpeg images to grayscale on the fly, and I thought GD could do it, but to me it looked like the closest thing was 
$newimage->colorAllocate($red,$green,$blue);

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I tried this 
my $newimage = new GD::Image($newW,$newH);
$newimage->copyResized($srcimage,0,0,0,0,$newW,$newH,$srcW,$srcH);
$newimage->colorAllocate(255,255,255);
print $newimage->jpeg;

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But there is no change in the colors, so I'm guessing that is not what I am looking for. I'm sure there has to be something out there that will do this though... Thanks

In reply to converting Jpeg to grayscale by Anonymous Monk

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