plt.imshow grayscale
plt.imshow(arr, cmap='gray', vmin=0, vmax=255)
plt.imshow grayscale
plt.imshow(arr, cmap='gray', vmin=0, vmax=255)
imshow grayscale
plt.imshow(im, cmap='gray')
Image to grayscale using python
import numpy as np import matplotlib.pyplot as plt import matplotlib.image as mpimg def rgb2gray(rgb): return np.dot(rgb[...,:3], [0.299, 0.587, 0.144]) img = mpimg.imread('img.png') gray = rgb2gray(img) plt.imshow(gray, cmap='gray') plt.savefig('greyscale.png') plt.show()
python image to grayscale
from PIL import Image img = Image.open("image.jpg") img.convert("L").save("result.jpg")
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