samples/c/pyramid_segmentation.c

   1 #include "opencv2/imgproc/imgproc.hpp"
   2 #include "opencv2/highgui/highgui.hpp"
   3 #include "opencv2/imgproc/imgproc_c.h"
   4 #include <stdio.h>
   5
   6 void help()
   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                         "Call:\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 void ON_SEGMENT(int a)
  35 {
  36     cvPyrSegmentation(image0, image1, storage, &comp,
  37                       level, threshold1+1, threshold2+1);
  38
  39     /*l_comp = comp->total;
  40
  41     i = 0;
  42     min_comp.value = cvScalarAll(0);
  43     while(i<l_comp)
  44     {
  45         cur_comp = (CvConnectedComp*)cvGetSeqElem ( comp, i );
  46         if(fabs(255- min_comp.value.val[0])>
  47            fabs(255- cur_comp->value.val[0]) &&
  48            fabs(min_comp.value.val[1])>
  49            fabs(cur_comp->value.val[1]) &&
  50            fabs(min_comp.value.val[2])>
  51            fabs(cur_comp->value.val[2]) )
  52            min_comp = *cur_comp;
  53         i++;
  54     }*/
  55     cvShowImage("Segmentation", image1);
  56 }
  57
  58
  59 int main( int argc, char** argv )
  60 {
  61     char* filename = argc == 2 ? argv[1] : (char*)"fruits.jpg";
  62
  63     if( (image[0] = cvLoadImage( filename, 1)) == 0 )
  64         return -1;
  65
  66     cvNamedWindow("Source", 0);
  67     cvShowImage("Source", image[0]);
  68
  69     cvNamedWindow("Segmentation", 0);
  70
  71     storage = cvCreateMemStorage ( block_size );
  72
  73     image[0]->width &= -(1<<level);
  74     image[0]->height &= -(1<<level);
  75
  76     image0 = cvCloneImage( image[0] );
  77     image1 = cvCloneImage( image[0] );
  78     // segmentation of the color image
  79     l = 1;
  80     threshold1 =255;
  81     threshold2 =30;
  82
  83     ON_SEGMENT(1);
  84
  85     sthreshold1 = cvCreateTrackbar("Threshold1", "Segmentation", &threshold1, 255, ON_SEGMENT);
  86     sthreshold2 = cvCreateTrackbar("Threshold2", "Segmentation",  &threshold2, 255, ON_SEGMENT);
  87
  88     cvShowImage("Segmentation", image1);
  89     cvWaitKey(0);
  90
  91     cvDestroyWindow("Segmentation");
  92     cvDestroyWindow("Source");
  93
  94     cvReleaseMemStorage(&storage );
  95
  96     cvReleaseImage(&image[0]);
  97     cvReleaseImage(&image0);
  98     cvReleaseImage(&image1);
  99
 100     return 0;
 101 }
 102
 103 #ifdef _EiC
 104 main(1,"pyramid_segmentation.c");
 105 #endif