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