Image rotation is a specialization of an affine transformation. The OpenCV-Python module deals with real-time applications related to computer vision. It provides several inbuilt functions to deal with images as input from the user. We use cv2.getRotationMatrix2D() method to transform the matrix and cv2.warpAffine() method to rotate the image based on the matrix transformation.

Rotate Image in Python using OpenCV

To rotate an image, apply a matrix transformation.  To create a matrix transformation, use the cv2.getRotationMatrix2D() method and pass the origin that we want the rotation to happen around. If we pass the origin (0, 0), then it will start transforming the matrix from the top-left corner. The getRotationMatrix2D() function calculates the affine matrix of 2D rotation.

#python #opencv #opencv-python #cv2.getrotationmatrix2d #getrotationmatrix2d