Seth Price on wrote...
| Is it possible to create a transparent montage in Imagemagick? By
| default, the background becomes white. If I explicitly set the
| background to transparent with the -background flag, *everything* is
| transparent except some scattered pixels. This seems like a bug, but
| I'd at least like to know if I'm going about it right.
|
See the notes of various transparent modes in...
IM Examples, Montage, Background and Transparency Handling
http://www.cit.gu.edu.au/~anthony/graphics/imagick6/montage/#bg
| Here is my command:
| montage -verbose -geometry +0+0 -background "rgba(255,255,255,0)"
| world.pol.2700.png world.pol.2700.png png8:world.pol.2700.m.png
|
| You can get "world.pol.2700.png" from http://pricepages.org/temp/
| world.pol.2700.png
|
You can even get IM to get the image...
montage -verbose -geometry +0+0 -background None \
http://pricepages.org/temp/world.pol.2700.png +clone \
world.pol.2700.m.png
PS: PNG8 like GIF is a 256 color table limited image with a single
boolean transparency. So if you are playing with partical transparency,
or resized images with transparency, DON'T USE IT.
Anthony Thyssen ( System Programmer ) <[EMAIL PROTECTED]>
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"You know, just once I'd like to meet an alien menace
that wasn't immune to bullets. -- Brigadier, Doctor Who, "Robot"
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Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/
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