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Graphics Interchange Format  |  1997-01-13  |  64.0 KB  |  505x675  |  4-bit (16 colors)
   ocr: VP (a) a d aa ad da dd aaa aad ada add daa dad dda ddd V/P - (b) a aa ad da dd daa dad dda ddd daaa daad dada dadd VP a da dd dda ddd ddda dddd Figure 4: Different disjoint coversjormed from tbe WPT binary tree (Figure 3) vield aujerent wavelet packet bases. (a). A subband basis; (b) an ortbonormal basis subset; (C) a basis which is the opposite oft the wauetet basis (better frequency localization at bigber/requencies),