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Identical PNGs compare says all colors are different
Posted: 2014-08-07T18:20:14-07:00
by craftkiller
Code: Select all
$ compare -metric rmse "/home/talexander/.vdiff_out/2014_08_08_00_55_40/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png" "/home/talexander/.vdiff_out/2014_08_08_00_48_59/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png" ~/out.png
20644.7 (0.315019)% [talexander@tafront:~]$ md5sum "/home/talexander/.vdiff_out/2014_08_08_00_55_40/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png" "/home/talexander/.vdiff_out/2014_08_08_00_48_59/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png"
aa26bc68251f37735759cc7cac184cde /home/talexander/.vdiff_out/2014_08_08_00_55_40/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png
aa26bc68251f37735759cc7cac184cde /home/talexander/.vdiff_out/2014_08_08_00_48_59/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png
I've uploaded the images I was using to
http://static.paphus.com/bug_report/ima ... ems.tar.xz
Code: Select all
$ compare --version (08-07 18:15)
Version: ImageMagick 6.8.9-6 Q16 x86_64 2014-07-28 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2014 ImageMagick Studio LLC
Features: DPC HDRI Modules OpenCL OpenMP
Delegates: bzlib cairo fontconfig freetype gslib jng jp2 jpeg lcms lqr ltdl lzma pangocairo png ps rsvg tiff webp wmf x xml zlib
Interestingly enough I'm not getting the issue on a machine with this version:
Code: Select all
$ compare --version
Version: ImageMagick 6.6.0-4 2012-05-02 Q16 http://www.imagemagick.org
Copyright: Copyright (C) 1999-2010 ImageMagick Studio LLC
Features: OpenMP
Re: Identical PNGs compare says all colors are different
Posted: 2014-08-07T18:23:41-07:00
by fmw42
Your upload does not contain the two input images, only the output. We would need the two input images to do our own tests.
Re: Identical PNGs compare says all colors are different
Posted: 2014-08-07T18:27:50-07:00
by craftkiller
think I figured it out, does imagemagick do its own globbing outside the shell?
Re: Identical PNGs compare says all colors are different
Posted: 2014-08-07T18:28:55-07:00
by craftkiller
It contains all 3 images
Code: Select all
curl "http://static.paphus.com/bug_report/imagemagick/problems.tar.xz" | tar -tJ
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 25944 100 25944 0 0 82220 0 --:--:-- --:--:-- --:--:-- 82361
home/talexander/.vdiff_out/2014_08_08_00_55_40/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png
home/talexander/.vdiff_out/2014_08_08_00_48_59/*3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png
home/talexander/out.png
Re: Identical PNGs compare says all colors are different
Posted: 2014-08-07T18:52:06-07:00
by fmw42
I have downloaded and opened your "home" folder twice now and all I see is out.png in a folder called talexander.
Your filenames such as *3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=.png
are very strange with * and =. Perhaps that is a problem. IM may be seeing the * as a wildcard. See
http://www.imagemagick.org/Usage/files/#read
You have a hidden folder in there that starts with a period (.vdiff_out). If you remove the period, then it won't be hidden to everyone, at least not on Unix.
On my IM 6.8.9.6 Q16 Mac OSX, I get a perfect comparison (I renamed the two files with 1 and 2)
Code: Select all
compare -metric rmse *3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=1.png *3ZLiByTFqbVIKd5tkq7jDHs0gGLidSqAsDIO3fzvkY=2.png null:
0 (0)