图像(numpy)与Base64互转

写在前面

• 本文内容
  图像(numpy)与Base64互转

• 平台/环境
  python opencv numpy

• 转载请注明出处：
  https://blog.csdn.net/qq_41102371/article/details/146369894

代码

img_convert.py

import cv2
import base64
import numpy as np


def img2base64(img):
    _, buffer = cv2.imencode('.png', img)
    image_data = buffer.tobytes()
    base64_data = base64.b64encode(image_data).decode("utf-8")
    return base64_data

def base642img(base64_data):
    image_data = base64.b64decode(base64_data)
    image_array = np.frombuffer(image_data, dtype=np.uint8)
    img = cv2.imdecode(image_array, cv2.IMREAD_COLOR)
    return img


if __name__=="__main__":

    # read img
    img = cv2.imread("./test.png")
    
    # covnert img to Base64
    base64_data = img2base64(img)
    print(base64_data)

    # convert Base64 to img
    img = base642img(base64_data)
    cv2.imwrite("./test.png", img)

    # show img
    cv2.imshow("Restored Image", img)
    cv2.waitKey(0)
    cv2.destroyAllWindows()

test.png

完

主要做激光/影像三维重建，配准、分割等常用点云算法，熟悉open3d、pcl等开源点云库，技术交流、咨询可私信