python 多线程处理图片

thread

for i in range(len(ori_path)):
        for filename in os.listdir(ori_path[i]):
            number_img = number_img + 1
            print("正在处理第" + str(number_img) + "张图片")
            img_name = ori_path[i] + filename
            t = Thread(target = deal_one_img, args = [img_name, filename])
            t.start()

线程池

with ThreadPoolExecutor(max_workers=20) as executor:
        for i in range(len(ori_path)):
            for filename in os.listdir(ori_path[i]):
                number_img = number_img + 1
                print("正在处理第" + str(number_img) + "张图片")
                img_name = ori_path[i] + filename
                # 使用线程池处理所有图片
                executor.submit(deal_one_img, img_name, filename)
        executor.shutdown(wait=True)