17-7 JPEG画像のブロック間の類似性を用いた共圧縮アルゴリズム(第17部門画像符号化2)

抄録

JPEG format, one of most commonly used image compression methods, focuses only on similarities of pixels in the same block. We present a new method to re-compress JPEG images by using similarities in multiple blocks decoded until the step before inverse DCT.