2 #pragma package <opencv>
5 #define CV_NO_BACKWARD_COMPATIBILITY
17 IplImage* gray_img0 = NULL;
18 IplImage* gray_img = NULL;
20 int lo_diff = 20, up_diff = 20;
24 int new_mask_val = 255;
26 void on_mouse( int event, int x, int y, int flags, void* param )
33 case CV_EVENT_LBUTTONDOWN:
35 CvPoint seed = cvPoint(x,y);
36 int lo = ffill_case == 0 ? 0 : lo_diff;
37 int up = ffill_case == 0 ? 0 : up_diff;
38 int flags = connectivity + (new_mask_val << 8) +
39 (ffill_case == 1 ? CV_FLOODFILL_FIXED_RANGE : 0);
40 int b = rand() & 255, g = rand() & 255, r = rand() & 255;
44 cvThreshold( mask, mask, 1, 128, CV_THRESH_BINARY );
48 CvScalar color = CV_RGB( r, g, b );
49 cvFloodFill( color_img, seed, color, CV_RGB( lo, lo, lo ),
50 CV_RGB( up, up, up ), &comp, flags, is_mask ? mask : NULL );
51 cvShowImage( "image", color_img );
55 CvScalar brightness = cvRealScalar((r*2 + g*7 + b + 5)/10);
56 cvFloodFill( gray_img, seed, brightness, cvRealScalar(lo),
57 cvRealScalar(up), &comp, flags, is_mask ? mask : NULL );
58 cvShowImage( "image", gray_img );
61 printf("%g pixels were repainted\n", comp.area );
64 cvShowImage( "mask", mask );
70 int main( int argc, char** argv )
72 char* filename = argc >= 2 ? argv[1] : (char*)"fruits.jpg";
74 if( (color_img0 = cvLoadImage(filename,1)) == 0 )
77 printf( "Hot keys: \n"
78 "\tESC - quit the program\n"
79 "\tc - switch color/grayscale mode\n"
80 "\tm - switch mask mode\n"
81 "\tr - restore the original image\n"
82 "\ts - use null-range floodfill\n"
83 "\tf - use gradient floodfill with fixed(absolute) range\n"
84 "\tg - use gradient floodfill with floating(relative) range\n"
85 "\t4 - use 4-connectivity mode\n"
86 "\t8 - use 8-connectivity mode\n" );
88 color_img = cvCloneImage( color_img0 );
89 gray_img0 = cvCreateImage( cvSize(color_img->width, color_img->height), 8, 1 );
90 cvCvtColor( color_img, gray_img0, CV_BGR2GRAY );
91 gray_img = cvCloneImage( gray_img0 );
92 mask = cvCreateImage( cvSize(color_img->width + 2, color_img->height + 2), 8, 1 );
94 cvNamedWindow( "image", 0 );
95 cvCreateTrackbar( "lo_diff", "image", &lo_diff, 255, NULL );
96 cvCreateTrackbar( "up_diff", "image", &up_diff, 255, NULL );
98 cvSetMouseCallback( "image", on_mouse, 0 );
105 cvShowImage( "image", color_img );
107 cvShowImage( "image", gray_img );
113 printf("Exiting ...\n");
118 printf("Grayscale mode is set\n");
119 cvCvtColor( color_img, gray_img, CV_BGR2GRAY );
124 printf("Color mode is set\n");
125 cvCopy( color_img0, color_img, NULL );
133 cvDestroyWindow( "mask" );
138 cvNamedWindow( "mask", 0 );
140 cvShowImage( "mask", mask );
145 printf("Original image is restored\n");
146 cvCopy( color_img0, color_img, NULL );
147 cvCopy( gray_img0, gray_img, NULL );
151 printf("Simple floodfill mode is set\n");
155 printf("Fixed Range floodfill mode is set\n");
159 printf("Gradient (floating range) floodfill mode is set\n");
163 printf("4-connectivity mode is set\n");
167 printf("8-connectivity mode is set\n");
175 cvDestroyWindow( "test" );
176 cvReleaseImage( &gray_img );
177 cvReleaseImage( &gray_img0 );
178 cvReleaseImage( &color_img );
179 cvReleaseImage( &color_img0 );
180 cvReleaseImage( &mask );
186 main(1,"ffilldemo.c");