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ImageMagick notes

Published 2020-08-03, last edit 2020-08-04

1. Rotate a tiled image 45 degrees #

Better results with square images, of course. The 45 is the degree amount. 

convert in.png  -matte -virtual-pixel tile +distort  ScaleRotateTranslate  '1  1  45' out.png

2. Stack images vertically #

convert 1.jpg 2.jpg 3.jpg -gravity center -append out.jpg