Python 批量生成显示直方图

1. 路径；

2. for 循环批量读取图片；

3. 生成直方图并且显示

import cv2
from matplotlib import pyplot as plt
import os
import numpy as np

path = r'D:/cut_photo' # 图像保存路径
def image_hist_demo(path):
    for filename in os.listdir(path):
        img = cv2.imdecode(np.fromfile(path + "/" + filename,dtype=np.uint8),-1)
         
        for i in range(1,665):                # 设置读取数量
            plt.hist(img[i].ravel(), 256)
            plt.show()                        # 显示直方图
            cv2.imshow("original_image", img) # 显示原图

            cv2.waitKey()
            cv2.destroyAllWindows()

    print("run successful!")

if __name__ == "__main__":
    image_hist_demo(path)

欢迎交流！