Imagemagick convert resize then crop

Question

I have over 1000 images on different resolutions, (for example 1234x2122, 4400x5212 , etc) and I want to convert all them to fixed 100x100 size, so.

1. first I

Answer 1

To keep the aspect ratio and don't fill anything (extent), rather crop from the longer edge which is out of aspect you could do

convert input.jpg -resize 100x100^ \
                  -gravity Center  \
                  -crop 100x100+0+0 +repage  \
        output.jpg

with option to crop more from one side if you like