Difference Between Pillow and CV2

pre-requisite

$ pip install opencv-python
$ pip install Pillow
$ pip install matplotlib

Contents

• Relative Code is here show_img.py

Read Image by CV2

import matplotlib.pyplot as plt
import cv2
img_path = ...
img = cv2.imread(img_path) # h, w, 3
# print(img.shape)
# reverse the last channel
# img = img[:, :, ::-1]
plt.imshow(img)

• if not reverse the last channel:

• if reversed:

Read Image by Pillow

import matplotlib.pyplot as plt
import PIL.Image as Image
img_path = ...
img = Image.open(img_path)
# print(img.size)
plt.imshow(img)

• You don't need to do other operations