Mercurial > hg > wm
diff Meerwald/cmp_pgm.c @ 3:acb6967ee76d
update to 0.5
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
---|---|
date | Tue, 14 Aug 2007 21:11:21 +0200 |
parents | be303a3f5ea8 |
children | f83ef905a63d |
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--- a/Meerwald/cmp_pgm.c Tue Aug 14 19:59:48 2007 +0200 +++ b/Meerwald/cmp_pgm.c Tue Aug 14 21:11:21 2007 +0200 @@ -4,7 +4,7 @@ char *progname; void usage(void) { - fprintf(stderr, "usage: %s [-C] [-h] [-m n] [-o file] [-pP] [-r file] -i file file\n\n", progname); + fprintf(stderr, "usage: %s [-C] [-h] [-m n] [-o file] [-pP] -i file file\n\n", progname); fprintf(stderr, "\t-C\t\tprint PSNR value only\n"); fprintf(stderr, "\t-h\t\tprint usage\n"); fprintf(stderr, "\t-i file\t\toriginal image file\n"); @@ -12,7 +12,6 @@ fprintf(stderr, "\t-o file\t\toutput file for difference image\n"); fprintf(stderr, "\t-p\t\tprint PSNR, RMS and MSE\n"); fprintf(stderr, "\t-P\t\tonly print PSNR, RMS and MSE, no difference image\n"); - fprintf(stderr, "\t-r file\t\tROI (region-of-interest) mask (default none)\n"); exit(0); } @@ -21,29 +20,22 @@ FILE *in = stdin; FILE *out = stdout; FILE *orig = NULL; - FILE *roi = NULL; gray **input_image; gray **orig_image; - gray **roi_image; char output_name[MAXPATHLEN] = "(stdout)"; char input_name[MAXPATHLEN] = "(stdin)"; char orig_name[MAXPATHLEN]; - char roi_name[MAXPATHLEN]; int in_cols, in_rows, in_format; gray in_maxval; - int roi_cols, roi_rows, roi_format; - gray roi_maxval; int orig_cols, orig_rows, orig_format; gray orig_maxval; int cols, rows, format; gray maxval; int col, row; - int roisize = 0; - int i; int c; @@ -59,7 +51,7 @@ pgm_init(&argc, argv); wm_init(); - while ((c = getopt(argc, argv, "h?i:m:o:r:pPC")) != EOF) { + while ((c = getopt(argc, argv, "h?i:m:o:pPC")) != EOF) { switch (c) { case 'h': case '?': @@ -72,13 +64,6 @@ } strcpy(orig_name, optarg); break; - case 'r': - if ((roi = fopen(optarg, "rb")) == NULL) { - fprintf(stderr, "%s: unable to open ROI image file %s\n", progname, optarg); - exit(1); - } - strcpy(roi_name, optarg); - break; case 'm': m = atoi(optarg); if (m <= 0) { @@ -129,22 +114,11 @@ pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format); - if (orig) { - pgm_readpgminit(orig, &orig_cols, &orig_rows, &orig_maxval, &orig_format); + pgm_readpgminit(orig, &orig_cols, &orig_rows, &orig_maxval, &orig_format); - if (in_cols != orig_cols || in_rows != orig_rows) { - fprintf(stderr, "%s: input image %s does not match dimensions of original image %s\n", progname, input_name, orig_name); - exit(1); - } - } - - if (roi) { - pgm_readpgminit(roi, &roi_cols, &roi_rows, &roi_maxval, &roi_format); - - if (in_cols != roi_cols || in_rows != roi_rows) { - fprintf(stderr, "%s: input image %s does not match dimensions of ROI image %s\n", progname, input_name, roi_name); - exit(1); - } + if (in_cols != orig_cols || in_rows != orig_rows) { + fprintf(stderr, "%s: input image %s does not match dimensions of original image %s\n", progname, input_name, orig_name); + exit(1); } cols = in_cols; @@ -154,75 +128,45 @@ input_image = pgm_allocarray(cols, rows); orig_image = pgm_allocarray(cols, rows); - roi_image = pgm_allocarray(cols, rows); for (row = 0; row < rows; row++) { pgm_readpgmrow(in, input_image[row], cols, in_maxval, in_format); - if (orig) - pgm_readpgmrow(orig, orig_image[row], cols, orig_maxval, orig_format); - else - memset(orig_image[row], cols, 0); - if (roi) - pgm_readpgmrow(roi, roi_image[row], cols, roi_maxval, roi_format); - else - memset(roi_image[row], cols, PGM_MAXMAXVAL); + pgm_readpgmrow(orig, orig_image[row], cols, orig_maxval, orig_format); } fclose(in); - if (orig) fclose(orig); - if (roi) fclose(roi); + fclose(orig); - max = 0; - min = PGM_MAXMAXVAL; + min = max = abs(input_image[0][0] - orig_image[0][0]); for (row = 0; row < rows; row++) { gray *pi = input_image[row]; gray *po = orig_image[row]; - gray *pr = roi_image[row]; for (col = 0; col < cols; col++) { int diff = abs(*pi - *po); - int inroi = (!roi || *pr > 0); - - pi++; - po++; - pr++; - - if (roi && !inroi) - continue; - - roisize++; - error += sqr(diff); if (diff < min) min = diff; if (diff > max) max = diff; + pi++; + po++; } } for (row = 0; row < rows; row++) { gray *pi = input_image[row]; gray *po = orig_image[row]; - gray *pr = roi_image[row]; for (col = 0; col < cols; col++) { int diff = abs(*pi - *po); - int inroi = (!roi || *pr > 0); - - if (!inroi) { - *pi = 0; - } - else { - if (m > 0) - *pi = PIXELRANGE(diff * m); - else - *pi = PIXELRANGE((double) (diff - min) / (double) (max - min) * maxval); - } + if (m > 0) + *pi = PIXELRANGE(diff * m); + else + *pi = PIXELRANGE((double) (diff - min) / (double) (max - min) * maxval); pi++; po++; - pr++; - } } @@ -236,16 +180,13 @@ pgm_freearray(input_image, rows); pgm_freearray(orig_image, rows); - pgm_freearray(roi_image, rows); if (print_psnr || print_psnr_only) { - double mse = (roisize) ? error / (double) roisize : 0; + double mse = error / (double) (cols * rows); double rmse = sqrt(mse); - double psnr = (rmse) ? 20.0 * log(255.0 / rmse) / log(10.0) : 0; + double psnr = 20.0 * log(255.0 / rmse) / log(10.0); FILE *print = print_psnr_only ? out : stderr; if (!print_psnr_value_only) { - if (roi) - fprintf(print, "ROI size: %d\n", roisize); if (mse > 0.0) fprintf(print, "PSNR: %lf dB\n", psnr); else