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possible bug in verbose info IM 6.4.3-6

Posted: 2008-09-09T17:37:54-07:00
by fmw42
IM 6.4.3-6 Q16 Mac OSX Tiger

Seems like identify -vebose is displaying some strange (backwards) information about min/max values when transparency is enabled. That is, min is larger than max.


From image.png at viewtopic.php?f=1&t=12015

When I do:

identify -verbose image.png

...
Colorspace: Gray
Depth: 16/8-bit
Channel depth:
gray: 1-bit
alpha: 8-bit
Channel statistics:
gray:
min: 0 (0)
max: 0 (0)
mean: 0 (0)
standard deviation: -0 (-0)
alpha:
min: 255 (1)
max: 0 (0)

mean: 55.0361 (0.215828)
standard deviation: 103.896 (0.407436)


I suspect this is a carryover from using opacity. But it seems for reporting alpha values, that the min and max are backwards.

Re: possible bug in verbose info IM 6.4.3-6

Posted: 2008-09-09T17:48:19-07:00
by magick
We have a patch for the problem you reported in the Subversion trunk. Look for a new point release with the patch within a week or two. Thanks.