The sample code uses the following image as an example. By 3 flipping options, this tool enables you to easily flip any photo, picture or image right to left, bottom to top and upper left to bottom right in mirror. It can rotate at any angle, not in 90 degree increments. Using Pillow is the simplest and easiest way if you just load an existing image file, rotate, flip and save it. You can also use Pillow (PIL) to rotate and flip an image.

Reading and saving image files with Python, OpenCV (imread, imwrite).

Here, the following contents will be described.įor the basics of image processing with NumPy, see the following article that describes how to read an image file with Pillow(PIL) and convert it to ndarray without using OpenCV, and how to save ndarray as an image file.įor reading and writing images with OpenCV, see the following article:

There are functions for rotating or flipping images (= ndarray) in OpenCV and NumPy, either of which can be used. Python's OpenCV handles images as NumPy array ndarray.

How to flip a jpeg image