Legacy ImageMagick Discussions Archive

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.)

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

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

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

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?

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.

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.

Thanks so much!

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