read_image.py 文件源码

def contour_plot_on_text_in_image(inv_img):
    kernel = cv2.getStructuringElement(cv2.MORPH_CROSS, (5, 2))
    dilated = cv2.dilate(inv_img, kernel, iterations=7)  # dilate
    _, contours, hierarchy = cv2.findContours(
        dilated,
        cv2.RETR_EXTERNAL,
        cv2.CHAIN_APPROX_NONE)  # get contours
    return contours