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Lines Matching refs:Histogram

537  * This structure represents a two-tier histogram. The first tier (known as the
550 } Histogram;
553  * HOP is short for Histogram OPeration. This macro makes an operation \a op on
554  * histogram \a h for pixel value \a x. It takes care of handling both levels.
606  * Subtracts histogram \a x from \a y and stores the result in \a y. Makes use
656     Histogram H[4];
744                 /* Update corresponding histogram segment */
1456                     (CACHE_SIZE / sizeof(Histogram) - 2*r) );