Legacy ImageMagick Discussions Archive

Hm... I'll check if I can find how to modify shotdetect's code to produce "spec conform PNGs", but from what I saw so far, it seems to be something inside libgd that's not allocating the colormap correctly. Will contact them, then. I'm still wondering why all other applications seem to handle those ...

The output of "convert -list format | grep PNG" is as follows: JNG* PNG rw- JPEG Network Graphics MNG* PNG rw+ Multiple-image Network Graphics (libpng 1.2.49) PNG* PNG rw- Portable Network Graphics (libpng 1.2.49) See http://www.libpng.org/ for details about the PNG format. PNG24* PNG rw- opaque 24 ...

Thanks for all your input! If the PNG is invalid (which I do not doubt), why did it work with previous versions of ImageMagick? (e.g. I've just tried with v6.6.9-7 (Q16 2014-03-06) I've checked the sourcecode of shotdetect, and it uses libgd to generate the PNGs. I've also checked the paletted color ...

I've been using imagemagick to split super-wide video analysis graph images generated by Shotdetect without problems for years now (ImageMagick v6.6.0-4 2012-05-03 Q16, Debian 6). With the version in Debian 7's repositories (ImageMagick v6.7.7-10 2014-03-08 Q16) I now get the following error ...