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#importing the required libraries
import numpy as np
import cv2
import matplotlib.pyplot as plt
%matplotlib inline
image = cv2.imread('index.png')
rows,cols = image.shape[:2]
#(col/2,rows/2) is the center of rotation for the image
# M is the cordinates of the center
M = cv2.getRotationMatrix2D((cols/2,rows/2),90,1)
dst = cv2.warpAffine(image,M,(cols,rows))
plt.imshow(dst)
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