Certain commands not working in Windows 7

[Tagomago]

I've just discovered that on Windows 7 commands like -spread and some translations of Fred's scripts do not work, but they work fine on XP/Vista/32-bit windows. I just tested this over several machines (2 each on Windows 7, 2 each on XP/Vista)

I couldn't get a clear search result in this forum to see if this issue has been raised before. I will update as I discover more commands that don't work properly. (I also need to go update some threads.)

[magick]

Post an example of a command that does not work so we can investigate. For example, you say -spread does not work under Windows 7. Does this command fail for you?

• convert logo: -spread 3 logo.png

[Tagomago]

Sorry to not do that in the first place.

convert logo: -spread 3 logo.png

output image: blank white.

convert test.jpg -spread 3 spread.jpg

test.jpg


spread.jpg


Both of these worked fine on my laptop, running Windows Vista. IM version on all computers is 6.6.7.7

[el_supremo]

FYI, that command works with your test image (and with logo:) on my Win7 Pro x64 system with:
Version: ImageMagick 6.6.7-4 2011-01-29 Q16 http://www.imagemagick.org
Features: OpenMP

Pete

[Tagomago]

Hm... It failed to work on two Windows 7 machines, both running 6.6.7.7 or close to it.

Someone brought up OpenMP before - I see what it is generally on wikipedia, but I have no idea if these two computers have it. Should they?

[fmw42]

OpenMP is employed in IM to allow a multiprocessor computer to spread the processing over all your processors. You can enable or disable its use in IM configure file.

[magick]

We can reproduce the problem you reported and have a patch in ImageMagick 6.6.7-10 Beta available by sometime tomorrow. Look for updated Windows binaries sometime this weekend.

[Tagomago]

Thanks so much!

[Tagomago]

Spread is now working for me on Windows 7, 64-bit. Thanks again!