Testing an ImageMagick install?

Is there a quick test to see if ImageMagick was installed correctly?

I just installed it on my new Raq4 without errors (none that I saw anyway) but a quick look at perldiver.cgi doesn't show ImageMagick as an Installed Module.

run a shell command on an image with mogrify command.

Thanks! OK, so I did a $ mogrify -colors 2 testimage.gif and it worked, but the $ mogrify -colors 2 testimage.jpg gives me this error:

Code:

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$ mogrify -colors 2 testimage.jpg
mogrify: JPEG library is not available (testimage.jpg).
mogrify: Missing an image file name.

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I guess that means the JPEG library install didn't go very well. :(