-compose modes

Questions and postings pertaining to the usage of ImageMagick regardless of the interface. This includes the command-line utilities, as well as the C and C++ APIs. Usage questions are like "How do I use ImageMagick to create drop shadows?".
Post Reply
toshog
Posts: 23
Joined: 2010-02-12T19:29:43-07:00
Authentication code: 8675308

-compose modes

Post by toshog »

hello...

in a script called textcleaner located at http://www.fmwconcepts.com/imagemagick/textcleaner/ i found a operator for -compose (copy_opacity) which is not specified here http://www.imagemagick.org/script/comma ... hp#compose.

what "type of image composition" does copy_opacity set? is it deprecated?

thanks...
User avatar
fmw42
Posts: 25562
Joined: 2007-07-02T17:14:51-07:00
Authentication code: 1152
Location: Sunnyvale, California, USA

Re: -compose modes

Post by fmw42 »

It is there at http://www.imagemagick.org/script/compose.php (under copy*). Also see http://www.imagemagick.org/Usage/compose/#copyopacity

It puts a grayscale image into the alpha channel of another image.
User avatar
anthony
Posts: 8883
Joined: 2004-05-31T19:27:03-07:00
Authentication code: 8675308
Location: Brisbane, Australia

Re: -compose modes

Post by anthony »

See actual examples in IM Examples, "Image Compostion"
http://www.imagemagick.org/Usage/compose/
Anthony Thyssen -- Webmaster for ImageMagick Example Pages
https://imagemagick.org/Usage/
Post Reply