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- import numpy as np
- import cv2
- def draw_grid(img: np.ndarray, grid_w: int, grid_h:int):
- """划格网"""
- img_h, img_w, _ = img.shape
- # 绘制横向网格线
- for i in range((img_h // grid_h)+1):
- cv2.line(img, (0, i*grid_h), (img_w, i*grid_h), (0, 255, 0), 2)
- # 绘制纵向网格线
- for i in range((img_w // grid_w)+1):
- cv2.line(img, (i*grid_w, 0), (i*grid_w, img_h), (0, 255, 0), 2)
- return img
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