Shows lossy compression of a JPEG file. It just rotates an image 180 degrees a couple times. Using 100% quality it's still a lossy format.

generation_loss.sh

#/bin/bash
# Params: 
#	- original filename
#	- number of 180 degrees rotations

cp $1 degradated.jpg

for ((i=1; i <= $2 ; i++)); do
	convert degradated.jpg  -quality 100 -rotate 180  temp.jpg
	mv temp.jpg degradated.jpg
done