Flipping Images

Flipping Images – OpenCV

• OpenCV has several ways to flip
• Use the function flip()

import cv2
im_flip = cv2.flip(image,0)

• It takes the input as array, and the parameter flip code.
• If the parameter flip code = 0, it will flip vertically around y axis
• Use the function rotate()

import cv2
im_flip = cv2.rotate(image,cv2.ROTATE_90_CLOCKWISE)

• It takes the input as array, and the parameter flip code.
• If the parameter flip code = 0, it will flip vertically around y axis
• ROTATE_90_CLOCKWISE – rotates the input image 90 degrees clockwise (top row becomes the rightmost column)

Image flipping

Image can be flipped either on x axis or y axis or both

cv2.flip(image to be flipped, flip_code)

flipped_image = cv2.flip(new_img_r,0) 
plt.imshow(flipped_image)

flipped_image_1 = cv2.flip(new_img_r,1)
plt.imshow(flipped_image_1)

flipped_image_2 = cv2.flip(new_img_r,1)
plt.imshow(flipped_image_2)

To Save an image using OpenCV

type(flipped_image_2)
cv2,imwrite('NewFlippedImg.jpg'mflipped_image_2)

To display the images as large size in notebook

flg = plt.figure(figsize=(10,8))
ax = fig.add_subplot(111)
ax.imshow(flipped_image_2)

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