The module jpeg provides access to the jpeg compressor and decompressor written by the Independent JPEG Group (IJG). JPEG is a standard for compressing pictures; it is defined in ISO 10918. For details on JPEG or the Independent JPEG Group software refer to the JPEG standard or the documentation provided with the software.
A portable interface to JPEG image files is available with the Python Imaging Library (PIL) by Fredrik Lundh. Information on PIL is available at http://www.pythonware.com/products/pil/.
The jpeg module defines an exception and some functions.
|data, w, h, b)|
(data, width, height, bytesperpixel). Again, the data is suitable to pass to gl.lrectwrite().
||Force output to be grayscale, even if input is RGB.|
||Set the quality of the compressed image to a value between
||Perform Huffman table optimization. Takes longer, but results in smaller compressed image. This only affects compression.|
||Perform inter-block smoothing on uncompressed image. Only useful for low-quality images. This only affects decompression.|
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