OpenCV¶

import cv2 as cv
improt numpy as np
import matplotlib.pyplot as plt

img = cv.imread(
  "/fruits.jpg",
  cv.IMREAD_GRAYSCALE # COLOR, GRAYSCALE, UNCHANGED
) # numpy array

# x, y, channel
img[:, :, 0] # particular channel only

plt.axis("off")
plt.imshow(img)
plt.show()

img = cv.cvtColor(
  img,
  cv.COLOR_BGR2RGB
)

cv.imwrite(
    "output.png",
  img
)