python篇---base64码流转成图片保存

python篇—base64码流转成图片保存

import os
import base64
from io import BytesIO
from PIL import Image
from faker import Faker


fak = Faker()

 # 输入为base64格式字符串，输出为PIL格式图片
def base64_to_image(base64_str):  # 用 b.show()可以展示
    image = base64.b64decode(base64_str, altchars=None, validate=False)
    image = BytesIO(image)
    image = Image.open(image)
    return image


if __name__ == '__main__':
    file_path = "/app/yyq/dataset/1putuo_waste_project/important_real_data/log_results"
    file_sum = os.listdir(file_path)

    # 图片保存路径
    save_img = "/app/yyq/dataset/1putuo_waste_project/important_real_data/bs64_img/"
    if not os.path.exists(save_img):
        os.makedirs(save_img)

    for fi in file_sum:
        file = open(os.path.join(file_path, fi), "r")
        print(fi)
        try:
            while True:
                line = file.readline()
                if line:
                    img = base64_to_image(eval(line)["pic"])
                    # 随机生成时间用于保存图片
                    date_ = fi.split("_")[0] + "-" + fak.date(pattern='%H:%M:%S').replace(":", "-")
                    img_name = save_img + date_ + ".jpeg"
                    img.save(img_name)
                    print(eval(line)["processdate"], eval(line)["result"])
                else:
                    break
        except:
            pass
        finally:
            print("{}文件处理完成".format(file))
            file.close()

这里分享个比较好玩的，随机生成时间

from faker import Faker


fak = Faker()

print('日期：', fak.date(pattern = '%H:%M:%S'))
print(type(fak.date(pattern = '%H:%M:%S')))
print('年：', fak.year())
print('月：',fak.month())
print('日：', fak.day_of_month())
print('星期：', fak.day_of_week())