定位-----台阶定位

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read_image (Image, 'C:/Users/Administrator/Desktop/10_6582_f1d1dbd6db14b30.bmp')

gray_closing_rect (Image, ImageClosing, 11, 11) 

scale_image (ImageClosing, ImageScaled, 2.5, 0) 

mean_image (ImageScaled, ImageMean, 300, 300) 

dyn_threshold (ImageScaled, ImageMean, RegionDynThresh, 1, 'light') 

opening_rectangle1 (RegionDynThresh, RegionOpening, 40, 40) 

connection (RegionOpening, ConnectedRegions) 

select_shape (ConnectedRegions, SelectedRegions, 'width', 'and', 125, 99999) 

smallest_rectangle1 (SelectedRegions, Row1, Column1, Row2, Column2) 

smallest_rectangle2 (SelectedRegions, Row, Column, Phi, Length1, Length2) 

gen_rectangle2 (Rectangle, Row2-145, Column, Phi, Length1/4, Length2/3) 

dev_set_draw ('margin') 

dev_display (Image) 

dev_display (Rectangle)