PyJPEG

Implementation of JPEG in Python. Primary use is educational.

Heavily inspired on this explanatory video by Computerphile.

Examples

The following notebooks contain useful examples:

• compress and decompress image with this notebook.
• walk-through of the code in this notebook.
• apply a discrete cosine transform to an image this notebook.
• apply an inverse discrete cosine transform to an image this notebook.

Links

• The wiki page explains clearly the different steps of the JPEG - actually the JFIF - algorithm.
• This article was helpful to understand the inverse Discrete Cosine Transform (DCT).