[magick-users] Image Magic (convert)

[Rebecca York]

Hiya,

I'm having problems with image magic (convert.exe)

convert.exe c:\foo.jpg -filter Lanczos -resize 640x480! -sharpen 1x0.75
-blur 1x0.3 -quality 76 -strip -sampling-factor 2x2 -compress JPEG
c:\foo2.jpg

This works fine on valid jpg images, resizes them nicely;

The problem occurs when the image isn't a valid jpg file, convert.exe
returns but keeps the process running, and when a certain number of
convert.exe processes are running (we've counted 100s of them at some
points) it stops resizing any images at all. (the images are actually on a
UNC share not c:\)

To get around this I want to put in a script to quickly go through the
images and automatically discard invalid images - is there any quick way of
checking whether a jpg is valid or not?

These are uploaded by clients and they put in loads of junk

Thanks.



Rebecca York
Systems Architect
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2nd Byte - Impressing Used Car Customers

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