Legacy ImageMagick Discussions Archive

I'm using whatever's in Ubuntu's apt-get repositories. Seems like it's a bit out of date. I suppose I should build from source.

Update: it looks like moving this line up to right after the image is created makes it work.

Problem resolved.

I'm trying to write a PNG with very specific grayscale values. In particular, I want certain pixels to have value, say, 80 (out of 255). The following code writes a PNG that, when inspecting in GIMP, gives the pixels value 20 where I wanted 80. When looking at the bottom part of the image, 80 seems ...