读取图片列表——CNN输入

    image_list = []
    new_file_list = []
    for root, _, file_list in os.walk(predict_dir):
        new_file_list += [file for file in file_list if ".nfs" not in file]
        new_file_list.sort(key= lambda x:int(x[:-4]))
        for file in new_file_list:
#            print (new_file_list)
            image = os.path.join(root, file)         
            temp_image = Image.open(image).convert('L')
            temp_image = temp_image.resize((64, 64), Image.ANTIALIAS)           
            temp_image = np.asarray(temp_image) / 255.0
            image_list.append(temp_image)
    image_list = np.asarray(image_list)       
    temp_image = image_list.reshape([len(new_file_list), 64, 64, 1])