| decode an array of bytes in DCT format.
DCT is the format used by JPEG images, so this class simply
loads the DCT-format bytes as an image, then reads the bytes out
of the image to create the array. Unfortunately, their most
likely use is to get turned BACK into an image, so this isn't
terribly efficient... but is is general... don't hit, please.
The DCT-encoded stream may have 1, 3 or 4 samples per pixel, depending
on the colorspace of the image. In decoding, we look for the colorspace
in the stream object's dictionary to decide how to decode this image.
If no colorspace is present, we guess 3 samples per pixel.
Parameters: dict - the stream dictionary Parameters: buf - the DCT-encoded buffer Parameters: params - the parameters to the decoder (ignored) the decoded buffer |