OpenVINO optimized OpenCV and my compiled OpenCV have some little pixel difference.

[Jie__Sun]

HI guys:

          When I use cv::imread to read one image file use OpenVINO optimized OpenCV and my compiled OpenCV and Python OpenCV,I found the pixel from OpenVINO optimized OpenCV and Python OpenCV is the same,But my compiled OpenCV have some little difference.I want do compile my own OpenCV to have the same decode pixel with OpenVINO optimized OpenCV,Can you tell me how to do this,What options should be add.Thanks very much.

[Jie__Sun]

Have anyone come across this problem?

[Maksim_S_Intel · Accepted solution]

Are you reading JPEG file? Different OpenCV builds can use different versions of libjpeg which can return different results. If you need consistent result you should use loseless format such as PNG or BMP.

[Jie__Sun]

Hi Maksim S. Thank you for replay.Yes,i am reading JPEG file.I read the CMakeLists.txt and found the OPENCV_FORCE_3RDPARTY_BUILD option.I turn it and sovle my problem.Thank you very much.