How can I set a minimum thumbnail size with ImageMagick?

Posted by Zilk on Super User See other posts from Super User or by Zilk
Published on 2010-04-20T21:22:16Z Indexed on 2010/04/20 21:24 UTC
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I'm trying to create thumbnails of JPG photos using ImageMagick's convert tool. The thumbnails need to have a defined size (210x159), no blank areas, and the image can be cropped if necessary.

Unfortunately, I only have ImageMagick 6.3.7 available, which doesn't support the '^' geometry modifier (added in v6.3.8-3). Is there another way to achieve this in earlier versions of ImageMagick?

Thanks in advance.

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