1 * This example demonstrates shape based matching
 2 * with multi channel images
 3 * 
 4 * Init display
 5 dev_update_off ()
 6 Mode := 'multi channel'
 7 ModelColor := 'green'
 8 CircleColor := 'white'
 9 Names := ['Pear Apple Hazelnut','Cherry Currant','Strawberry']
10 read_image (Image, 'color/yogurt_model_01')
11 get_image_size (Image, Width, Height)
12 dev_close_window ()
13 dev_open_window (0, 0, Width, Height, 'black', WindowHandle)
14 set_display_font (WindowHandle, 14, 'mono', 'true', 'false')
15 * 
16 * Part 1: create shape models
17 ModelIDs := []
18 for Index := 1 to 3 by 1
19 read_image (Image, 'color/yogurt_model_' + Index$'02')
20 dev_display (Image)
21 * 
22 * Create ROI automatically
23 access_channel (Image, Channel1, 1)
24 fast_threshold (Channel1, Region, 75, 255, 20)
25 fill_up (Region, RegionFillUp)
26 opening_circle (RegionFillUp, RegionOpening, 170.5)
27 gen_contour_region_xld (RegionOpening, Contours, 'border')
28 fit_circle_contour_xld (Contours, 'geotukey', -1, 0, 0, 3, 2, Row, Column, Radius, StartPhi, EndPhi, PointOrder)
29 gen_circle (Circle, Row, Column, Radius / 2)
30 reduce_domain (Image, Circle, ImageReduced)
31 * 
32 * Create model
33 create_shape_model (ImageReduced, 6, rad(0), rad(360), 'auto', 'auto', 'ignore_color_polarity', [35,50,15], 11, ModelID)
34 ModelIDs := [ModelIDs,ModelID]
35 * 
36 * Display model
37 dev_set_color (CircleColor)
38 dev_set_draw ('margin')
39 dev_set_line_width (5)
40 dev_display (Circle)
41 get_shape_model_contours (Model1Contours, ModelID, 1)
42 dev_set_color (ModelColor)
43 dev_set_line_width (2)
44 dev_display_shape_matching_results (ModelIDs, ModelColor, Row, Column, 0.0, 1, 1, ModelID)
45 disp_message (WindowHandle, 'Create shape model ' + Names[Index - 1], 'window', 12, 12, 'black', 'true')
46 disp_message (WindowHandle, 'Press \'Run\' to continue', 'window', 450, 12, 'black', 'true')
47 stop ()
48 endfor
49 * Main loop: Find yogurt
50 for Index := 1 to 10 by 1
51 read_image (Image, 'color/yogurt_' + Index$'02')
52 * Preprocessing: Reduce search domain to speed up matching
53 access_channel (Image, Channel1, 1)
54 fast_threshold (Channel1, Region, 50, 255, 20)
55 fill_up (Region, RegionFillUp)
56 erosion_rectangle1 (RegionFillUp, RegionErosion, 210, 210)
57 reduce_domain (Image, RegionErosion, ImageReduced)
58 * Find yogurt
59 find_shape_models (ImageReduced, ModelIDs, rad(0), rad(360), 0.80, 1, 0.5, 'least_squares', 0, 0.95, Row, Column, Angle, Score, Model)
60 * 
61 * Display results
62 dev_display (Image)
63 gen_circle (Circle, Row, Column, Radius / 2)
64 dev_set_color (CircleColor)
65 dev_set_line_width (5)
66 dev_display (Circle)
67 get_shape_model_contours (ModelContours, Model, 1)
68 dev_set_color (ModelColor)
69 dev_set_line_width (2)
70 dev_display_shape_matching_results (ModelIDs, ModelColor, Row, Column, Angle, 1, 1, Model)
71 disp_message (WindowHandle, Names[find(ModelIDs,Model)] + ' found', 'window', 12, 12, 'black', 'true')
72 disp_message (WindowHandle, 'Score ' + Score, 'window', 50, 12, 'black', 'true')
73 if (Index < 10)
74 disp_continue_message (WindowHandle, 'black', 'true')
75 stop ()
76 endif
77 endfor
78 * 
79 * Cleanup memory
80 clear_shape_model (ModelIDs[0])
81 clear_shape_model (ModelIDs[1])
82 clear_shape_model (ModelIDs[2])