image_conform

#!/bin/bash
# Given a pile of images on the command line will make them all the same size
# Finds the maximum height among them and the maximum width and scales them all
# into that box.

w=$(identify -ping -format '%w\n' "$@" | sort | tail -1)
h=$(identify -ping -format '%h\n' "$@" | sort | tail -1)

for image in "$@"; do
  if [ -f "$image~" ]; then
    rm "$image~"
  fi
  mv "$image" "$image~"
  convert "$image~" -gravity center -background white -extent ${w}x${h} "$image"
done