Legacy ImageMagick Discussions Archive

Many thanks to fmw42, snibgo and anthony for taking time and providing solutions. For my engineering related apps, I find the intensity reversal method suggested by anthony and fmw42 works the best. I would also use the fuzz adjustment solution from fmw42 for certain situations, as it preserves ...

I'd like to thank snibgo for the suggestion. I have uploaded original GIF and PNG images and their converted results to the dropbox website. In the example, I used different fonts in black and white, and added some colored text. The links for the original GIF/PNG images and their converted results ...

I used the methods described by fmw42 and anthony on GIF images with colored objects and pure white colored texts on pure black background. After the conversion, the colored objects are preserved fine. However, the black colored texts converted from the white texts (of various font sizes) all show ...