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Graphics Interchange Format  |  1997-01-13  |  41.0 KB  |  539x211  |  4-bit (16 colors)
   ocr: F()=-CuCt) LZf))-cos (21HDull ECOS: (21-DT (a) 16 16 *oyt 2 17 (b) F(NJ- - 2CACOPF04UPCOs (2x41)u1 COS (2ytDvl 16 16 LovEo where: C(W),C)- a à for MV=O and C(a),C)=1 otherwise VA Figure 2: (a) Forward discrete cosine fransform (FDCT); (b) inverse discrete cosine transform (IDCT).