Image to Background Difference, problem with command

[DahdeKing]

http://www.imagemagick.org/Usage/channels/#mask_diff

When I try to shell execute convert.exe with the following:

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"C:\Documents and Settings\User2\Desktop\Pics\Testing\cyclops.png ( +clone -fx 'p{0,0}' )  -compose Difference  -composite   -modulate 100,0  +matte  C:\Documents and Settings\User2\Desktop\Pics\Testing\difference.png", "C:\Program Files\ImageMagick-6.3.7-Q8\"

or this:

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"C:\Documents and Settings\User2\Desktop\Pics\Testing\cyclops.png \( +clone -fx 'p{0,0}' \)  -compose Difference  -composite   -modulate 100,0  +matte  C:\Documents and Settings\User2\Desktop\Pics\Testing\difference.png", "C:\Program Files\ImageMagick-6.3.7-Q8\"

I get no error and no resulting image

What am I doing wrong?

[anthony]

then debug it. do operators slowly and see what you are getting. rememebr you could have multiple images in the current image sequence at each point in the processing.