Python读取文件夹图片并显示

1 显示某个文件下的所有图片

import matplotlib.image as im
import matplotlib.pyplot as plt
%matplotlib inline  #jupyter notebook需要加这一句
import os

#需要读取的路径
path_name = r'E:\BreakHis_dataset\validation\12'

for item in os.listdir(path=path_name):
    img = im.imread(os.path.join(path_name,item))
    plt.imshow(img)
    plt.show()

2 读取图片数据并存储

import os 
import cv2

# this if for store all of the image data
array_of_img = []

# this function is for read image,the input is directory name
def read_directory(directory_name):
    # this loop is for read each image in this foder,directory_name is the foder name with images.
    for filename in os.listdir(directory_name):
        #print(filename) #just for test
        #img is used to store the image data 
        img = cv2.imread(directory_name + "/" + filename)
        array_of_img.append(img)
        #print(img)
        print(array_of_img)