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图像修改

图像修改1、实现原理2、实现效果3、实现代码

1、实现原理​

对NumPy数组（图像）进行切片和赋值操作。

2、实现效果​

cd ~/opencv xxxxxxxxxx python3 03.image_modify.py

注意：选中图片按q可以退出程序！

image-20250106144557431

3、实现代码​

​ x import cv2 def modify_image(input_path, output_path): image = cv2.imread(input_path) if image is None: print("Error: Unable to open image file.") return image[:50, :50] = [255, 255, 255] if cv2.imwrite(output_path, image): print(f"Image saved to {output_path}") cv2.imshow('Image Preview', cv2.imread(output_path)) cv2.waitKey(0) cv2.destroyAllWindows() else: print("Error: Unable to save image file.") modify_image('/home/jetson/opencv/images/yahboom_logo.png', \ '/home/jetson/opencv/images/yahboom_logo_modify.png')