annotate Meerwald/cmp_pgm.c @ 4:9cf6ec970448 v0.5

mention filter param.
author Peter Meerwald <pmeerw@cosy.sbg.ac.at>
date Tue, 14 Aug 2007 21:13:11 +0200
parents acb6967ee76d
children f83ef905a63d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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1 #include "wm.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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2 #include "pgm.h"
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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3
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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4 char *progname;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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6 void usage(void) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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7 fprintf(stderr, "usage: %s [-C] [-h] [-m n] [-o file] [-pP] -i file file\n\n", progname);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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8 fprintf(stderr, "\t-C\t\tprint PSNR value only\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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9 fprintf(stderr, "\t-h\t\tprint usage\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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10 fprintf(stderr, "\t-i file\t\toriginal image file\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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11 fprintf(stderr, "\t-m n\t\tmultiplication factor (default auto)\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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12 fprintf(stderr, "\t-o file\t\toutput file for difference image\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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13 fprintf(stderr, "\t-p\t\tprint PSNR, RMS and MSE\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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14 fprintf(stderr, "\t-P\t\tonly print PSNR, RMS and MSE, no difference image\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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15 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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16 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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18 int main(int argc, char *argv[]) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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19
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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20 FILE *in = stdin;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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21 FILE *out = stdout;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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22 FILE *orig = NULL;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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23
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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24 gray **input_image;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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25 gray **orig_image;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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26
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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27 char output_name[MAXPATHLEN] = "(stdout)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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28 char input_name[MAXPATHLEN] = "(stdin)";
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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29 char orig_name[MAXPATHLEN];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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30
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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31 int in_cols, in_rows, in_format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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32 gray in_maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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33 int orig_cols, orig_rows, orig_format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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34 gray orig_maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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35 int cols, rows, format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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36 gray maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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37 int col, row;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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38
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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39 int i;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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40 int c;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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41
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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42 int m = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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43 int min, max;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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44
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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45 int print_psnr = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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46 int print_psnr_only = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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47 int print_psnr_value_only = 0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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48 double error = 0.0;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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49
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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50 progname = argv[0];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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51
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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52 pgm_init(&argc, argv); wm_init();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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53
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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54 while ((c = getopt(argc, argv, "h?i:m:o:pPC")) != EOF) {
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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55 switch (c) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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56 case 'h':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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57 case '?':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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58 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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59 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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60 case 'i':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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61 if ((orig = fopen(optarg, "rb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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62 fprintf(stderr, "%s: unable to open original image file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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63 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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64 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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65 strcpy(orig_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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66 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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67 case 'm':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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68 m = atoi(optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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69 if (m <= 0) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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70 fprintf(stderr, "%s: multiplication factor %d out of range\n", progname, m);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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71 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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72 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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73 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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74 case 'o':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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75 if ((out = fopen(optarg, "wb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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76 fprintf(stderr, "%s: unable to open output file %s\n", progname, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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77 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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78 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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79 strcpy(output_name, optarg);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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80 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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81 case 'p':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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82 print_psnr = 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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83 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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84 case 'P':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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85 print_psnr_only = 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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86 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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87 case 'C':
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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88 print_psnr_value_only = 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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89 print_psnr_only = 1;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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90 break;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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91 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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92 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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93
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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94 argc -= optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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95 argv += optind;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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96
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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97 if (argc > 1) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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98 usage();
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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99 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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100 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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101
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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102 if (argc == 1 && *argv[0] != '-')
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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103 if ((in = fopen(argv[0], "rb")) == NULL) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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104 fprintf(stderr, "%s: unable to open input file %s\n", progname, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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105 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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106 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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107 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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108 strcpy(input_name, argv[0]);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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109
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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110 if (!orig) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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111 fprintf(stderr, "%s: original image file not specified, use -i file option\n", progname);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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112 exit(1);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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113 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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114
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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115 pgm_readpgminit(in, &in_cols, &in_rows, &in_maxval, &in_format);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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116
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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117 pgm_readpgminit(orig, &orig_cols, &orig_rows, &orig_maxval, &orig_format);
0
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118
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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119 if (in_cols != orig_cols || in_rows != orig_rows) {
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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120 fprintf(stderr, "%s: input image %s does not match dimensions of original image %s\n", progname, input_name, orig_name);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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121 exit(1);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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122 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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123
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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124 cols = in_cols;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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125 rows = in_rows;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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126 format = in_format;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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127 maxval = in_maxval;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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128
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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129 input_image = pgm_allocarray(cols, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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130 orig_image = pgm_allocarray(cols, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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131
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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132 for (row = 0; row < rows; row++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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133 pgm_readpgmrow(in, input_image[row], cols, in_maxval, in_format);
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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134 pgm_readpgmrow(orig, orig_image[row], cols, orig_maxval, orig_format);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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135 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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136
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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137 fclose(in);
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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138 fclose(orig);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
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139
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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140 min = max = abs(input_image[0][0] - orig_image[0][0]);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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141
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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142 for (row = 0; row < rows; row++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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143 gray *pi = input_image[row];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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144 gray *po = orig_image[row];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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145
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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146 for (col = 0; col < cols; col++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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147 int diff = abs(*pi - *po);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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148 error += sqr(diff);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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149 if (diff < min) min = diff;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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150 if (diff > max) max = diff;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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151
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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152 pi++;
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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153 po++;
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
154 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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155 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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156
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
157 for (row = 0; row < rows; row++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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158 gray *pi = input_image[row];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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159 gray *po = orig_image[row];
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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160
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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161 for (col = 0; col < cols; col++) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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162 int diff = abs(*pi - *po);
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
diff changeset
163 if (m > 0)
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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164 *pi = PIXELRANGE(diff * m);
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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165 else
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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166 *pi = PIXELRANGE((double) (diff - min) / (double) (max - min) * maxval);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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167
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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168 pi++;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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169 po++;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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170 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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171 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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172
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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173 if (!print_psnr_only) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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174 pgm_writepgminit(out, cols, rows, maxval, 0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
175 for (row = 0; row < rows; row++)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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176 pgm_writepgmrow(out, input_image[row], cols, maxval, 0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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177
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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178 fclose(out);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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179 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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180
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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181 pgm_freearray(input_image, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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182 pgm_freearray(orig_image, rows);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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183
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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184 if (print_psnr || print_psnr_only) {
3
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Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
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185 double mse = error / (double) (cols * rows);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
186 double rmse = sqrt(mse);
3
acb6967ee76d update to 0.5
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents: 0
diff changeset
187 double psnr = 20.0 * log(255.0 / rmse) / log(10.0);
0
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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188 FILE *print = print_psnr_only ? out : stderr;
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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189 if (!print_psnr_value_only) {
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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190 if (mse > 0.0)
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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191 fprintf(print, "PSNR: %lf dB\n", psnr);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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192 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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193 fprintf(print, "PSNR: inf\n");
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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194 fprintf(print, "RMSE: %lf\n", rmse);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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195 fprintf(print, "MSE: %lf\n", mse);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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196 fprintf(print, "dmin, dmax: %d, %d\n", min, max);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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197 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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198 else
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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199 fprintf(print, "%lf\n", mse > 0.0 ? psnr : 100.0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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200 }
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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201
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
202 exit(0);
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff changeset
203 }

Repositories maintained by Peter Meerwald, pmeerw@pmeerw.net.