瑕佸皢NumPy涓嶪mageIO闆嗘垚浣跨敤锛屽彲浠ヤ娇鐢ㄤ互涓嬫楠わ細

1. 棣栧厛锛屽畨瑁匩umPy鍜孖mageIO搴撱€備綘鍙互浣跨敤pip鏉ュ畨瑁呰繖涓や釜搴擄細

pip install numpy
pip install imageio

2. 鍦≒ython浠ｇ爜涓鍏umPy鍜孖mageIO搴擄細

import numpy as np
import imageio

3. 浣跨敤ImageIO搴撳姞杞藉浘鍍忔枃浠讹紝骞跺皢鍏惰浆鎹负NumPy鏁扮粍锛?/li>

img = imageio.imread('image.jpg')
img_array = np.array(img)

4. 鐜板湪浣犲彲浠ヤ娇鐢∟umPy鏁扮粍瀵瑰浘鍍忚繘琛屽鐞嗐€佸垎鏋愭垨淇敼銆備緥濡傦紝浣犲彲浠ュ鍥惧儚杩涜鐏板害鍖栧鐞嗭細

gray_img = np.dot(img_array[...,:3], [0.299, 0.587, 0.114])

5. 濡傛灉闇€瑕佸皢NumPy鏁扮粍淇濆瓨涓哄浘鍍忔枃浠讹紝鍙互浣跨敤ImageIO搴擄細

imageio.imwrite('output.jpg', gray_img.astype(np.uint8))

閫氳繃浠ヤ笂姝ラ锛屼綘鍙互寰堟柟渚垮湴灏哊umPy鍜孖mageIO闆嗘垚浣跨敤锛屽疄鐜板浘鍍忔暟鎹殑鍔犺浇銆佸鐞嗗拰淇濆瓨銆?/p>