Legacy ImageMagick Discussions Archive

My understanding of the correct convert syntax is to put the input image right after "convert" for most situations.

In my case, I need to feed the input image from standard input (here I used a file just to ease the explanation). That's why I need the "jpg:-" syntax (IM cannot detect the file ...

magick: as I said earlier, -negate is not enough to reproduce the original behavior (the two images still differ).

fmw42: I'm using

Version: ImageMagick 6.4.0 04/27/08 Q16 http://www.imagemagick.orgCopyright: Copyright (C)
1999-2008 ImageMagick Studio LLC

so the -modulate bug should have been ...

When I use the following command:

convert -modulate 100,0,100 -level 70% -depth 8 jpg:original.jpg pnm:new.pnm

I obtain very different results with ImageMagick before and after version 6.3.5.

For example, using the following image:

http://www.moioli.net/img/original.jpg

I obtain this result ...