Python OpenCV cv2.imwrite()用法及代码示例

2023-10-11 15:31| 来源: 网络整理| 查看: 265

OpenCV-Python是旨在解决计算机视觉问题的Python绑定库。cv2.imwrite()方法用于将图像保存到任何存储设备。这将根据指定的格式将图像保存在当前工作目录中。

用法： cv2.imwrite(filename, image)

参数： filename:代表文件名的字符串。文件名必须包含图像格式，例如.jpg，.png等。 image:就是要保存的图像。

返回值：如果成功保存图像，则返回true。

示例1:

# Python program to explain cv2.imwrite() method # importing cv2 import cv2 # importing os module import os # Image path image_path = r'C:\Users\Rajnish\Desktop\GeeksforGeeks\geeks.png' # Image directory directory = r'C:\Users\Rajnish\Desktop\GeeksforGeeks' # Using cv2.imread() method # to read the image img = cv2.imread(image_path) # Change the current directory # to specified directory os.chdir(directory) # List files and directories # in 'C:/Users/Rajnish/Desktop/GeeksforGeeks' print("Before saving image:") print(os.listdir(directory)) # Filename filename = 'savedImage.jpg' # Using cv2.imwrite() method # Saving the image cv2.imwrite(filename, img) # List files and directories # in 'C:/Users / Rajnish / Desktop / GeeksforGeeks' print("After saving image:") print(os.listdir(directory)) print('Successfully saved')

输出：

Before saving image: ['geeks.png'] After saving image: ['geeks.png', 'savedImage.jpg'] Successfully saved

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注：本文由纯净天空筛选整理自Rajnis09大神的英文原创作品 Python OpenCV | cv2.imwrite() method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。

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