... code: pa=’0’, pb=’1’ Bitrate R1 = 1*p+1*q = p+q = 1 bit/pel!Make a new alphabet blocking symbols! Block coding: n=2New alphabet: ’A’=’aa’, ’B’=’ab’, ’C’=’ba’, ’D’=’bb’pA=p2=0.9801, pB=pq=0.0099, ... bits 8 symbols in alphabetIf block size n → ∞? Hn ≤ Rn < Hn+1/nProblem - alphabet size and Huffman table size grows exponentially with number of symbols n blocked.∑∑==+≤≤NinnNinnnnBpBpnRBpBpn121*21)(log)(1)(log)(1 ... blocked.∑∑==+≤≤NinnNinnnnBpBpnRBpBpn121*21)(log)(1)(log)(1 Block coding: Example 2, n=11) Entropy H=-((56/64)*log2(56/64)+(8/64)*log2(8/64))=0.544 bits/pel2) Huffman code: a= ’0’; b=’1’ Bitrate: R= 1 bit/pel pa=56/64pb=8/64 Block coding:...