extract_text.py 文件源码

def keep_box(contour):
    xx, yy, w_, h_ = cv2.boundingRect(contour)

    # width and height need to be floats
    w_ *= 1.0
    h_ *= 1.0

    # Test it's shape - if it's too oblong or tall it's
    # probably not a real character
    if w_ / h_ < 0.1 or w_ / h_ > 10:
        if DEBUG:
            print "\t Rejected because of shape: (" + str(xx) + "," + str(yy) + "," + str(w_) + "," + str(h_) + ")" + \
                  str(w_ / h_)
        return False

    # check size of the box
    if ((w_ * h_) > ((img_x * img_y) / 5)) or ((w_ * h_) < 15):
        if DEBUG:
            print "\t Rejected because of size"
        return False

    return True