samples/c/pyramid_segmentation.c

   1 #include "opencv2/imgproc/imgproc_c.h"
   2 #include "opencv2/highgui/highgui_c.h"
   3 #include "opencv2/legacy.hpp"
   4 #include <stdio.h>
   5
   6 static void help(void)
   7 {
   8     printf("\nThis program demonstrated color pyramid segmentation cvcvPyrSegmentation() which is controlled\n"
   9             "by two trhesholds which can be manipulated by a trackbar. It can take an image file name or defaults to 'fruits.jpg'\n"
  10             "Usage :\n"
  11             "./pyaramid_segmentation [image_path_filename -- Defaults to fruits.jpg]\n\n"
  12             );
  13 }
  14
  15 IplImage*  image[2] = { 0, 0 }, *image0 = 0, *image1 = 0;
  16 CvSize size;
  17
  18 int  w0, h0,i;
  19 int  threshold1, threshold2;
  20 int  l,level = 4;
  21 int sthreshold1, sthreshold2;
  22 int  l_comp;
  23 int block_size = 1000;
  24 float  parameter;
  25 double threshold;
  26 double rezult, min_rezult;
  27 int filter = CV_GAUSSIAN_5x5;
  28 CvConnectedComp *cur_comp, min_comp;
  29 CvSeq *comp;
  30 CvMemStorage *storage;
  31
  32 CvPoint pt1, pt2;
  33
  34 static void ON_SEGMENT(int a)
  35 {
  36     (void)a;
  37     cvPyrSegmentation(image0, image1, storage, &comp,
  38                       level, threshold1+1, threshold2+1);
  39
  40     cvShowImage("Segmentation", image1);
  41 }
  42
  43
  44 int main( int argc, char** argv )
  45 {
  46     char* filename;
  47
  48     help();
  49
  50     filename = argc == 2 ? argv[1] : (char*)"fruits.jpg";
  51
  52     if( (image[0] = cvLoadImage( filename, 1)) == 0 )
  53     {
  54         help();
  55         printf("Cannot load fileimage - %s\n", filename);
  56         return -1;
  57     }
  58
  59     cvNamedWindow("Source", 0);
  60     cvShowImage("Source", image[0]);
  61
  62     cvNamedWindow("Segmentation", 0);
  63
  64     storage = cvCreateMemStorage ( block_size );
  65
  66     image[0]->width &= -(1<<level);
  67     image[0]->height &= -(1<<level);
  68
  69     image0 = cvCloneImage( image[0] );
  70     image1 = cvCloneImage( image[0] );
  71     // segmentation of the color image
  72     l = 1;
  73     threshold1 =255;
  74     threshold2 =30;
  75
  76     ON_SEGMENT(1);
  77
  78     sthreshold1 = cvCreateTrackbar("Threshold1", "Segmentation", &threshold1, 255, ON_SEGMENT);
  79     sthreshold2 = cvCreateTrackbar("Threshold2", "Segmentation",  &threshold2, 255, ON_SEGMENT);
  80
  81     cvShowImage("Segmentation", image1);
  82     cvWaitKey(0);
  83
  84     cvDestroyWindow("Segmentation");
  85     cvDestroyWindow("Source");
  86
  87     cvReleaseMemStorage(&storage );
  88
  89     cvReleaseImage(&image[0]);
  90     cvReleaseImage(&image0);
  91     cvReleaseImage(&image1);
  92
  93     return 0;
  94 }
  95
  96 #ifdef _EiC
  97 main(1,"pyramid_segmentation.c");
  98 #endif