Falafel.py 文件源码

def shapeFiltering(img):
    contours = cv2.findContours(img, cv2.RETR_TREE, cv2.CHAIN_APPROX_SIMPLE)[0]
    if len(contours) == 0:
        return "yoopsie"
    #else:
        #print contours
    """blank_image = np.zeros((img.shape[0],img.shape[1],3), np.uint8)
    cv2.drawContours(blank_image, contours, -1, (255, 255, 255))
    cv2.imshow("imagiae", blank_image)
    cv2.waitKey()"""
    good_shape = []
    for c in contours:
        x,y,w,h = cv2.boundingRect(c)
        """rect = cv2.minAreaRect(contour)
        box = cv2.boxPoints(rect)
        box = np.int0(box)
        w = """
        #if h == 0:
        #    continue
        ratio = w / h
        ratio_grade = ratio / (TMw / TMh)
        if 0.2 < ratio_grade < 1.8:
            good_shape.append(c)
    """blank_image = np.zeros((img.shape[0],img.shape[1],3), np.uint8)
    cv2.drawContours(blank_image, good_shape, -1, (255, 255, 255))
    cv2.imshow("imagia", blank_image)
    cv2.waitKey()"""
    return good_shape