This webinar will offer examples of Huffman coding
and dictionary methods that fuel the popular dominant methods of Lemple and Ziv.
Further, an improved version of the Huffman coding
method is described, which has significantly lower memory requirements than ordinary Huffman and is applicable to more generic data types, such as packet headers, where it can give a better compression ratio.
Huffman compression by Huffman coding (Huffman coding) in the fifties of last century, Huffman coding is a kind of variable length coding (VLC).
Huffman coding is based on the probability of the source signal is encoded to appear shorter the higher the probability of symbol for the design of the code word, on the contrary the smaller the probability of the symbol, its corresponding code word is the longer, thus average less yards long.
Figure 5 a, b, c, d four nodes can be Huffman coding and encoding of a 0, b encoded as 10, c is encoded as 110, d is encoded as 111.
is a statistical technique that attempts to reduce the amount of bits by encoding most frequently occurring symbols with shorter codes and longer codes for less significant symbols.
Concerning the Arabic texts compression, there are some tools supporting the Arabic language without taking into account its characteristics, such as Run Length Encoding, Huffman Coding
, Arithmetic Coding, LZ-77 Encoding [6,7], LZH, LZW Coding [3,8].
Further, Huffman coding
of indices generated by the encoder is used to achieve better compression ratio.
BSAC replaces the Huffman coding
portion of the conventional AAC standard used for noiseless coding of scale factors and spectral data.
The output of Huffman coding consists of Bit Length Table (BLT) and the actual encoded sequence.
3, ZIP/LHA uses two main compression methods, LZSS and Huffman coding.
As for data hiding for Huffman coding, we may be able to embed a secret message in a way that the eavesdropper cannot determine if the secret message is embedded or not if there is diversity in the existing implementations of Huffman coding.