Functions for Lossless JPEG Coding

This section describes the functions that are specific for the lossless JPEG process with Huffman coding. These functions are listed in Table “Functions for Lossless JPEG Coding”.

Functions for Lossless JPEG Coding
Function Base Name Description
DiffPredFirstRow_JPEG Computes the differences between input sample and predictor for the first line
DiffPredRow_JPEG Computes the differences between input sample and predictor for all lines but the first.
ReconstructPredFirstRow_JPEG Reconstructs samples from the decoded differences between input samples and predictor for the first line.
ReconstructPredRow_JPEG Reconstructs samples from the decoded differences between input samples and predictor for all lines but the first.
GetHuffmanStatisticsOne_JPEG Computes Huffman symbol statistics
EncodeHuffmanOne_JPEG Performs Huffman encoding of one difference.
DecodeHuffmanOne_JPEG Decodes one Huffman coded difference.
EncodeHuffmanRow_JPEG Performs Huffman encoding of one row of differences for each color component in the JPEG scan.
DecodeHuffmanRow_JPEG Decodes one row for each color component of Huffman coded differences.

The Intel IPP functions use the coding model in accordance with [ISO10918], Annex H, Lossless Mode of Operation.


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