Converting Different Image Sizes to 80x80

[anthony]

Yes read, Thumbnailing, in IM examples... http://www.imagemagick.org/Usage/thumbnails

[fmw42]

to process them all at once use mogrify (see http://www.imagemagick.org/Usage/basics/#mogrify) but be very careful you understand how to use it. Try it on some test images until you get the hang of it.

If all your images are different sizes, you cannot make them all 80x80 as IM will keep the aspect ratio of your original. Thus you will need to crop them or pad them after you scale them.

See -thumbnail or -resize and the use of the ^ option. (If on Windows ^^, as ^ is an escape. See http://www.imagemagick.org/Usage/api/#windows)

see the recent post about this viewtopic.php?f=1&t=11750

Also you may want to search the archives (see the search link at the top of the page) to see what others have asked and the answers.