X-Git-Url: http://mj.ucw.cz/gitweb/?a=blobdiff_plain;ds=sidebyside;f=images%2Fsig-cmp.c;h=c663c2b3edc56afd1c0db7afb9606b3b7538d3dc;hb=c4bf633211b0424492b5a3937d6a6d2e0d79a4cf;hp=fef29407f2e871ad1c8b5beb6a6acc7c1a0695f1;hpb=5c62f53d3cc21d624a99214fc21643a80d7c1696;p=libucw.git diff --git a/images/sig-cmp.c b/images/sig-cmp.c index fef29407..c663c2b3 100644 --- a/images/sig-cmp.c +++ b/images/sig-cmp.c @@ -1,5 +1,5 @@ /* - * Image Library -- Comparitions of image signatures + * Image Library -- Comparisions of image signatures * * (c) 2006 Pavel Charvat * @@ -10,108 +10,12 @@ #undef LOCAL_DEBUG #include "lib/lib.h" -#include "lib/math.h" #include "images/math.h" #include "images/images.h" #include "images/signature.h" #include -static uns -image_signatures_dist_fuzzy(struct image_signature *sig1, struct image_signature *sig2) -{ - DBG("image_signatures_dist_1()"); - - uns cnt1 = sig1->len; - uns cnt2 = sig2->len; - struct image_region *reg1 = sig1->reg; - struct image_region *reg2 = sig2->reg; - uns mf[IMAGE_REG_MAX][IMAGE_REG_MAX], mh[IMAGE_REG_MAX][IMAGE_REG_MAX]; - uns lf[IMAGE_REG_MAX * 2], lh[IMAGE_REG_MAX * 2]; - uns df = sig1->df + sig2->df, dh = sig1->dh + sig2->dh; - - /* Compute distance matrix */ - for (uns i = 0; i < cnt1; i++) - for (uns j = 0; j < cnt2; j++) - { - uns d = 0; - for (uns k = 0; k < IMAGE_REG_F; k++) - { - int dif = reg1[i].f[k] - reg2[j].f[k]; - d += dif * dif; - } - mf[i][j] = d; - d = 0; - for (uns k = 0; k < IMAGE_REG_H; k++) - { - int dif = reg1[i].h[k] - reg2[j].h[k]; - d += dif * dif; - } - mh[i][j] = d; - } - - uns lfs = 0, lhs = 0; - for (uns i = 0; i < cnt1; i++) - { - uns f = mf[i][0], h = mh[i][0]; - for (uns j = 1; j < cnt2; j++) - { - f = MIN(f, mf[i][j]); - h = MIN(h, mh[i][j]); - } - lf[i] = (df * 0x10000) / (df + fast_sqrt_u32(f)); - lh[i] = (dh * 0x10000) / (dh + fast_sqrt_u32(h)); - lfs += lf[i] * (6 * reg1[i].wa + 2 * reg1[i].wb); - lhs += lh[i] * reg1[i].wa; - } - for (uns i = 0; i < cnt2; i++) - { - uns f = mf[0][i], h = mh[0][i]; - for (uns j = 1; j < cnt1; j++) - { - f = MIN(f, mf[j][i]); - h = MIN(h, mh[j][i]); - } - lf[i + cnt1] = (df * 0x10000) / (df + fast_sqrt_u32(f)); - lh[i + cnt1] = (dh * 0x10000) / (dh + fast_sqrt_u32(h)); - lfs += lf[i] * (6 * reg2[i].wa + 2 * reg2[i].wb); - lhs += lh[i] * reg2[i].wa; - } - - uns measure = lfs * 6 + lhs * 2 * 8; - -#ifdef LOCAL_DEBUG - /* Display similarity vectors */ - byte buf[2 * IMAGE_REG_MAX * 16 + 3], *b = buf; - for (uns i = 0; i < cnt1 + cnt2; i++) - { - if (i) - *b++ = ' '; - if (i == cnt1) - *b++ = '~', *b++ = ' '; - b += sprintf(b, "%.4f", (double)lf[i] / 0x10000); - } - *b = 0; - DBG("Lf=(%s)", buf); - b = buf; - for (uns i = 0; i < cnt1 + cnt2; i++) - { - if (i) - *b++ = ' '; - if (i == cnt1) - *b++ = '~', *b++ = ' '; - b += sprintf(b, "%.4f", (double)lh[i] / 0x10000); - } - *b = 0; - DBG("Lh=(%s)", buf); - DBG("Lfm=%.4f", lfs / (double)(1 << (3 + 8 + 16))); - DBG("Lhm=%.4f", lhs / (double)(1 << (8 + 16))); - DBG("measure=%.4f", measure / (double)(1 << (3 + 3 + 8 + 16))); -#endif - - return (1 << (3 + 3 + 8 + 16)) - measure; -} - #define ASORT_PREFIX(x) image_signatures_dist_integrated_##x #define ASORT_KEY_TYPE uns #define ASORT_ELT(i) items[i] @@ -121,32 +25,3 @@ image_signatures_dist_fuzzy(struct image_signature *sig1, struct image_signature #define EXPLAIN #include "images/sig-cmp-gen.h" #include "images/sig-cmp-gen.h" - -uns -image_signatures_dist(struct image_signature *sig1, struct image_signature *sig2) -{ - switch (image_sig_compare_method) - { - case 0: - return image_signatures_dist_integrated(sig1, sig2); - case 1: - return image_signatures_dist_fuzzy(sig1, sig2); - default: - ASSERT(0); - } -} - -uns -image_signatures_dist_explain(struct image_signature *sig1, struct image_signature *sig2, void (*msg)(byte *text, void *param), void *param) -{ - switch (image_sig_compare_method) - { - case 0: - return image_signatures_dist_integrated_explain(sig1, sig2, msg, param); - case 1: - return image_signatures_dist_fuzzy(sig1, sig2); - default: - ASSERT(0); - } -} -