Communications Toolbox

Example: Creating and Decoding a Huffman Code

The example below performs Huffman encoding and decoding, using a source whose alphabet has three symbols. Notice that the huffmanenco and huffmandeco functions use the dictionary that huffmandict created.

sig = repmat([3 3 1 3 3 3 3 3 2 3],1,50); % Data to encode
symbols = [1 2 3]; % Distinct data symbols appearing in sig
p = [0.1 0.1 0.8]; % Probability of each data symbol
dict = huffmandict(symbols,p); % Create the dictionary.
hcode = huffmanenco(sig,dict); % Encode the data.
dhsig = huffmandeco(hcode,dict); % Decode the code.

Creating a Huffman Code Dictionary

Arithmetic Coding

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