He fet un tÃtol nou.
Images for testing:
grads.png - non-compressed color image for the tests.
There are high and low freqs.
grads-c.pgm - 32x32 grayscale cropped area of grads.png. There are high and
low freqs.
Other files:
test.sh - Gets the error mat/pgm between an original pgm and its compressed jpeg
(at specified quality).
Naming conventions:
$BASE.* - Variants without compression on the original image.
$BASE-c.* - Small cropped version of $BASE.
$BASE-jpg.* - Compressed jpeg-version of $BASE.