허프만+부호화

허프만+부호화

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1      (information theory)    (entropy) :      pi : i           ni :   i      pi : i      0         ? ? ?  ? ? ? (lossless coding) 7.1 ? ? ?  ? ? ? entropy p p i i i N = - = - log 2 0 1 bits per pixel n p i i i N = = - 0 1
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2         ,         ? ? ?  ? ? ? (Huffman codin g) 7.1 ? ? ?  ? ? ? symbol ? ? A1 0.1 A2 0.4 A3 0.06 A4 0.1 A5 0.04 A6 0.3 symbol 1 ? ? 2 ? ? 3 ? ? 4 ? ? A2 0.4(1) 0.4(1) 0.4(1) 0.4(1) 0.6(0) A6 0.3(00) 0.3(00) 0.3(00) 0.3(00) 0.4(1) A1
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허프만+부호화

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