ImageMagick Crush

[Solovei95]

Example:
convert img1.png -define png:bit-depth=8 -depth 12 -compress zip -quality 95080 -sampling-factor 4:2:2 img1.jng
Result:
Crush convert

Version Q16
.bat file

[glennrp]

Yes, I know, that crashes (segfaults) in IM-6.7.4-4. It has something to
do with the use of -depth 12 (-depth 8 does not crash). When the JNG encoder
was written, image->depth=12 could not occur, so that possibility was
overlooked. I'm looking for a fix now.

[glennrp]

It's not crashing now when depth is 9-15. All such depths are promoted internally
to 16 in the PNG encoder, because PNG doesn't support such depths.