llmserver/server/utils.py

import base64
import cv2
import numpy as np

# opencv读取出来的图片相当于numpy数组
def cv2_to_base64(image):
    image1 = cv2.imencode('.jpg', image)[1]
    image_code = str(base64.b64encode(image1))[2:-1]
    return image_code

def base64_to_cv2(image_code):
    #解码
    img_data=base64.b64decode(image_code)
    #转为numpy
    img_array=np.fromstring(img_data,np.uint8)
    #转成opencv可用格式
    img=cv2.imdecode(img_array,cv2.COLOR_RGB2BGR)
    return img