page.py 文件源码

def find_likely_rectangles(contours, sigma):
    contours = sorted(contours, key=cv2.contourArea, reverse=True)[:10]
    possible = []
    for c in contours:

        # approximate the contour
        peri = cv2.arcLength(c, True)
        approx = cv2.approxPolyDP(c, sigma * peri, True)
        box = make_box(approx)
        possible.append(box)

    return possible