How to put different files into different channels of a file

[test84]

Hi,
I'm trying to put different channels of different files into channels of a single file. To make myself more clear, I'm trying to read specular, normal maps and such things which are located on channels of various files and put them in R, G, B and Alpha channel of a single file.

Any ideas on how to do that?

[fmw42]

convert \( image1 -channel blue -separate \) \
\( image2 -channel red -separate \) \
\( image3 -channel green -separate \) \
\( image4 -channel red -separate \) \
-channel rgba -combine \
newimage.png

choose whatever channels you want in the above from each image

[test84]

Thank you man.

[anthony]

See IM examples, Channels and Masks
http://www.imagemagick.org/Usage/channels/

This looks at a lot of different methods of extracting and re-combining channel images.