How are the Run-Length-Encoded quantized DCT Coefficients further compressed by Huffman?

0
votes

I know that Huffman-Encoding is used in JPEG compression after the quantized DCT Coefficients are ZigZag and Run-Length encoded. But after RLE you have pairs like [..], (0|1), (2|1), [..]. I researched Huffman encoding and generally understood it, but I have no clue how to perform it on those values

1
compressionjpeghuffman-coderun-length-encoding
I recommend you start by reading the ITU T.81 standard. – DaBler

1 Answers

0
votes

The quantized DCT coefficients are run length encoded using a system unique to JPEG. The run length encoding are then huffman encoded.