Python OpenCV – cv2.flip() 方法

OpenCV-Python是一个主要针对实时计算机视觉的编程函数库。 cv2.flip()方法用于翻转二维数组。函数cv::flip 围绕垂直、水平或两个轴翻转二维数组。

Syntax: cv2.cv.flip(src, flipCode[, dst] )

Parameters:
src: Input array.
dst: Output array of the same size and type as src.
flip code: A flag to specify how to flip the array; 0 means flipping around the x-axis and positive value (for example, 1) means flipping around y-axis. Negative value (for example, -1) means flipping around both axes.

Return Value: It returns an image.

用于以下所有示例的图像：

例子：

# Python program to explain cv2.flip() method
  
# importing cv2
import cv2
  
# path
path = r'C:\Users\user\Desktop\geeks14.png'
  
# Reading an image in default mode
src = cv2.imread(path)
  
# Window name in which image is displayed
window_name = 'Image'
  
# Using cv2.flip() method
# Use Flip code 0 to flip vertically
image = cv2.flip(src, 0)
  
# Displaying the image
cv2.imshow(window_name, image)
cv2.waitKey(0)

输出：