I wanted to stitch a few photos together to form a montage. iMovie doesn’t do it. iView Media Pro has a feature to generate contact sheets, but isn’t exactly what I want. Ken suggested Photoshop, which I don’t have, and have no wish to acquiring it just to stitch some photos together.
ImagicMagick comes to rescure. montage is the command, but after a few attempts I couldn’t seem to get rid of the big thick borders around each individual photo. It turns out that the man page for montage is incomplete. montage -help gives more information on the option -mode, and finally, a montage -mode concatenate did the job for me.