Magick++ how to extract alpha channel

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?".
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hakiim35
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Joined: 2010-02-18T07:04:01-07:00
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Magick++ how to extract alpha channel

Post by hakiim35 »

Hi, how can I extract the alpha channel of the image, using Magick++ ?
I will then, modify the color of the extracted alpha channel and set it back to the original image.
Thanks.
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