Imagemagick convert resize then crop
You would use the area-fill (^) geometry modifier on the -resize operation to unify the down-scale. For cropping the center, -extent with -gravity Center will work. convert input.jpg -resize 100×100^ \ -gravity Center \ -extent 100×100 \ output.jpg Update As Mark Setchell pointed out in the comments, the mogrify utility can be leveraged to batch … Read more