10195101475/Three-channel.py

import sys
import cv2
import numpy as np
import matplotlib.pyplot as plt


def three_channel(img_path):
    img = cv2.imread(img_path, 1)  # 读取图片
    b = img[:, :, 0]
    g = img[:, :, 1]
    r = img[:, :, 2]
    cv2.imwrite('./output/b.jpg', b)
    cv2.imwrite('./output/g.jpg', g)
    cv2.imwrite('./output/r.jpg', r)


'''
输入:img_path
输出：b,g,r三通道共三张图片
'''
if __name__ == '__main__':
    three_channel(sys.argv[1])