import os import cv2 def resize_img(DATADIR, data_k, img_size): w = img_size[0] h = img_size[1] path = os.path.join(DATADIR, data_k) #返回path路径下所有文件的名字，以及文件夹的名字， img_list = os.listdir(path) for i in img_list: if i.endswith('.jpg'): # 调用cv2.imread读入图片，读入格式为IMREAD_COLOR img_array = cv2.imread((path + '/' + i), cv2.IMREAD_COLOR) # 调用cv2.resize函数resize图片 new_array = cv2.resize(img_array, (w, h), interpolation=cv2.INTER_CUBIC) img_name = str(i) '''生成图片存储的目标路径''' save_path = path + '_new/' if os.path.exists(save_path): print(i) '''调用cv.2的imwrite函数保存图片''' save_img=save_path+img_name cv2.imwrite(save_img, new_array) else: os.mkdir(save_path) save_img = save_path + img_name cv2.imwrite(save_img, new_array) if __name__ == '__main__': #设置图片路径 DATADIR = "D:/z_File/duck_mtmc/DukeMTMC-reID/" data_k = 'query' '''设置目标像素大小，此处设为128 * 256''' img_size = [128, 256] resize_img(DATADIR, data_k, img_size)