main.py 文件源码

def convert_to_binary_image(img_path, preview):
    img = cv2.imread(img_path)
    if preview: _preview_image("Original Message Image", img, keep_open=True)

    img_gray = cv2.imread(img_path, cv2.CV_LOAD_IMAGE_GRAYSCALE)
    if preview: _preview_image("Gray Scale Message Image", img_gray, keep_open=True)

    (thresh, img_bw) = cv2.threshold(img_gray, 128, 255, cv2.THRESH_BINARY | cv2.THRESH_OTSU)
    if preview:  _preview_image("Black & White Message Image", img_bw)

    return img_bw