[FIXED]possible bug show: IM 6.7.6.9 Q16

[fmw42]

IM 6.7.6.9 Q16 Mac OSX Snow Leopard

I am having trouble testing functions using show: in IM 6.7.6.9. It sometimes comes out totally black. In IM 6.7.4.10 it works fine. The images themselves display fine in other tools.


Here is an example:

Old IM 6.7.4.10 -- works fine -- saving file
im6 convert -size 100x100 xc:black xc:white +append 1tmp1a.png
im6 convert 1tmp1a.png show:


New IM 6.7.6.9 -- shows black -- saving file
convert -size 100x100 xc:black xc:white +append 1tmp1b.png
convert 1tmp1b.png show:


New IM 6.7.6.0 -- show fine by not saving file
convert -size 100x100 xc:black xc:white +append show:


I get the same behavior using gif and jpg

Seems to be some issue with show: and b/w images. The verbose info on 1tmp1a.png and 1tmp1b.png seems to be identical and a compare shows rmse=0. Does this happen with Linux or is it just a Mac issue?

Has there been some change in how show: is defined between IM 6.7.4.10 and IM 6.7.6.9?

By the way, using x: does not show this problem.

[magick]

We can reproduce the problem you reported and have a patch in ImageMagick 6.7.6-10 available within a day or two. Thanks,

[fmw42]

This now seems to be working again in 6.7.6.10 beta as of today

Thanks.