Thursday, April 28, 2011

Image Compression Results

Here are some more results comparing JPEG at the maximum compression level to my image compression algorithm:

Original image:



JPEG (15.7KiB):



My algorithm (3.2KiB):



Original image:



JPEG (6.3KiB):



My algorithm (2.0KiB):



Original image:



JPEG (6.2KiB):



My algorithm (3.9KiB):



Original image:



JPEG (11.2KiB):



My algorithm (2.8KiB):



Original image:



JPEG (7.1KiB):



My algorithm (3.0KiB):



Original image:



JPEG (5.9KiB):



My algorithm (1.5KiB):



Original image:



JPEG (16.4KiB):



My algorithm (4.0KiB):



All of the above images are around 1MiB when uncompressed. In every case my algorithm resulted in a smaller file size and a (arguably) better looking image.

2 comments:

Twan van Laarhoven said...

The image of 256 patches is only 19KB as a png, and around 5KB as a sufficiently high quality jpeg. So, you could embed a color profile specific to the image, and get a much better visual quality, for a modest increase in file size.

Byron Knoll said...

Wow, that is a great idea! Thanks, I will try this soon.