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Hi there, The command convert, from the ImageMagick suite, doesn't appear to have a properly configured jpeg decoder. So I get: # file test.jpg test.jpg: JPEG image data, JFIF standard 1.01 # convert test.jpg -geometry 600x test-out.jpg convert: no decode delegate for this image format `test.jpg'. convert: missing an image filename `test-out.jpg'. Strangely the output of identify -list format (as recommended at http://www.imagemagick.org/discourse-server/viewtopic.php?f=2&t=7303 ) is: # identify -list format|grep JPEG JNG* PNG rw- JPEG Network Graphics Which would imply that jpegs should be readable and writable by convert, which they don't appear to be. I'm using the an up to date cygwin (updated today, 8 March 2010), with the following versions of relevant packages: -libjpeg7, libjpeg-devel and jpeg 7-10 -ImageMagick and libImageMagick 6.4.0.6-1 Thanks, Nick
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