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DIVIDE_BY_ZERO in feature.c #1552

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@boo0m

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@boo0m

MagickCore/feature.c

In line 2259, it assgin 'count=0', the code make a loop as 'for (v=(-((ssize_t) height/2)); v <= (((ssize_t) height/2)); v++)' , the 'count++' in this loop and the 'gamma=1.0/count' in line 2291. But the count is 0 in some cases. It may happen DIVIDE_BY_ZERO bug if the code don't get in this loop.

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