def extract_square_from_contour(contour): the_image = Image.generate_mask(Contour.get_shape(contour)) # Display.contours(the_image, [contour]) cv2.drawContours(the_image, [contour], -1, 255, 1) # Display.image(the_image) # lines = PolarLines.find_suitable_lines(the_image) square_ragion = the_image vertical_lines = find_vertical_lines(square_ragion) border_line_count = 2 if len(vertical_lines) > border_line_count: raise SudokuError("The count of vertical border lines is larger than {0}".format(border_line_count)) horizontal_lines = find_horizontal_lines(square_ragion) if len(horizontal_lines) > border_line_count: raise SudokuError("The count of horizontal border lines is larger than {0}".format(border_line_count)) Display.polar_lines(square_ragion, vertical_lines + horizontal_lines) # Display.polar_lines(square_ragion, horizontal_lines) intersections = main_analyzer.find_intersections(vertical_lines, horizontal_lines) # intersections.ppl() Points.to_contour(intersections).ppl()
def extract_square_from_contour(contour): ''' it will extract square from the contour which could have many noise points. ''' the_image = Image.generate_mask(Contour.get_shape(contour)) # Display.contours(the_image, [contour]) cv2.drawContours(the_image, [contour], -1, 255 ,1) # Display.image(the_image) # lines = PolarLines.find_suitable_lines(the_image) square_ragion = the_image vertical_lines = find_vertical_lines(square_ragion) horizontal_lines = find_horizontal_lines(square_ragion) # flag_test() # Display.polar_lines(square_ragion, vertical_lines+horizontal_lines) border_line_count = 2 if len(vertical_lines) > border_line_count: logger.info("The count of vertical border lines is larger than {0}" .format(border_line_count)) vertical_lines = [vertical_lines[0],vertical_lines[-1]] if len(horizontal_lines) > border_line_count: logger.info("The count of horizontal border lines is larger than {0}" .format(border_line_count)) horizontal_lines = [horizontal_lines[0],horizontal_lines[-1]] # flag_test() # Display.polar_lines(square_ragion, vertical_lines+horizontal_lines) intersections = find_intersections(vertical_lines, horizontal_lines) # intersections.ppl() square_contour = Points.to_contour(intersections) # order the points square_contour = Points.to_contour(Quadrilateral.vertices(square_contour)) # 'test'.pl() # Display.contours(the_image,[square_contour]) return square_contour