nox.py 文件源码

def get_current_page(self, img):
        img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
        area = crop_image(img, **self.predefined.page_area)
        area = mask_image([254], [255], area)
        height, width = area.shape
        current_page = 0
        for x in range(4):
            box = crop_image(area, (x * width / 4), 0, ((x + 1) * width / 4), height)
            if cv2.countNonZero(box) > 0:
                current_page = x
                break
        return current_page + 1