python OpenCV jpeg compression in memory
You can use imencode:
encode_param = [int(cv2.IMWRITE_JPEG_QUALITY), 90]result, encimg = cv2.imencode('.jpg', img, encode_param)(The default value for IMWRITE_JPEG_QUALITY is 95.)
You can decode it back with:
decimg = cv2.imdecode(encimg, 1)Snippet from here