Overall statistics (only for files with a smaller recompressed size):
Original size: 9070 KiB on 449 files
Optimized size: 8184 KiB
Total saving: 885 KiB = 9% decrease
The rewrite only has minor visual differences, ImageMagick's
`composite -compose difference'
shows no visual differences.
The change makes it possible to optimise the code on the ARM Cortex A8
using NEON instructions.
This test is added to test modifications of the algorithm. It also adds a
programme to create the test images. And the test images to test whether
the output of the algorithm remains the same after changing the algorithm.
loonycyborg can you add this new programme to scons.
