#!/bin/bash
# A simple image resizer/compressor from here:
#    https://www.smashingmagazine.com/2015/06/efficient-image-resizing-with-imagemagick/
# INPUTS: input_files width output/path
# EXAMPLE: resizer "photos/*.jpg" 1920 "photos/compressed"

mkdir -p $3

mogrify -path $3 -filter Triangle -define filter:support=2 -resize $2 -unsharp 0.25x0.08+8.3+0.045 -dither None -posterize 136 -quality 82 -define jpeg:fancy-upsampling=off -define png:compression-filter=5 -define png:compression-level=9 -define png:compression-strategy=1 -define png:exclude-chunk=all -interlace none -colorspace sRGB $1