4 from opencv.cv import *
5 from opencv.highgui import *
25 def on_mouse( event, x, y, flags, param ):
30 if event==CV_EVENT_LBUTTONDOWN:
31 comp = CvConnectedComp()
36 flags = connectivity + (new_mask_val << 8)
40 flags = connectivity + (new_mask_val << 8) + CV_FLOODFILL_FIXED_RANGE
41 b = random.randint(0,255)
42 g = random.randint(0,255)
43 r = random.randint(0,255)
47 cvThreshold( mask, mask, 1, 128, CV_THRESH_BINARY );
51 color = CV_RGB( r, g, b );
52 cvFloodFill( color_img, seed, color, CV_RGB( lo, lo, lo ),
53 CV_RGB( up, up, up ), comp, flags, my_mask );
54 cvShowImage( "image", color_img );
58 brightness = cvRealScalar((r*2 + g*7 + b + 5)/10);
59 cvFloodFill( gray_img, seed, brightness, cvRealScalar(lo),
60 cvRealScalar(up), comp, flags, my_mask );
61 cvShowImage( "image", gray_img );
64 print "%g pixels were repainted" % comp.area;
67 cvShowImage( "mask", mask );
72 if __name__ == "__main__":
74 filename = "../c/fruits.jpg"
78 color_img0 = cvLoadImage(filename,1)
80 print "Could not open %s" % filename
84 print "\tESC - quit the program"
85 print "\tc - switch color/grayscale mode"
86 print "\tm - switch mask mode"
87 print "\tr - restore the original image"
88 print "\ts - use null-range floodfill"
89 print "\tf - use gradient floodfill with fixed(absolute) range"
90 print "\tg - use gradient floodfill with floating(relative) range"
91 print "\t4 - use 4-connectivity mode"
92 print "\t8 - use 8-connectivity mode"
94 color_img = cvCloneImage( color_img0 );
95 gray_img0 = cvCreateImage( cvSize(color_img.width, color_img.height), 8, 1 );
96 cvCvtColor( color_img, gray_img0, CV_BGR2GRAY );
97 gray_img = cvCloneImage( gray_img0 );
98 mask = cvCreateImage( cvSize(color_img.width + 2, color_img.height + 2), 8, 1 );
100 cvNamedWindow( "image", 1 );
101 cvCreateTrackbar( "lo_diff", "image", lo_diff, 255, update_lo);
102 cvCreateTrackbar( "up_diff", "image", up_diff, 255, update_up);
104 cvSetMouseCallback( "image", on_mouse );
108 cvShowImage( "image", color_img );
110 cvShowImage( "image", gray_img );
114 print("Exiting ...");
119 print("Grayscale mode is set");
120 cvCvtColor( color_img, gray_img, CV_BGR2GRAY );
125 print("Color mode is set");
126 cvCopy( color_img0, color_img, None );
132 cvDestroyWindow( "mask" );
136 cvNamedWindow( "mask", 0 );
138 cvShowImage( "mask", mask );
142 print("Original image is restored");
143 cvCopy( color_img0, color_img, None );
144 cvCopy( gray_img0, gray_img, None );
147 print("Simple floodfill mode is set");
150 print("Fixed Range floodfill mode is set");
153 print("Gradient (floating range) floodfill mode is set");
156 print("4-connectivity mode is set");
159 print("8-connectivity mode is set");