In Ubuntu 20.04, OpenCV4.2.0 is installed I wanted to upgrade to 4.5.5 I have followed built from source manual. All builds smooth but after I check with pkg-config --modversion opencv4, it displays only 4.2.0. Any ideas will help me a lot. In raspberry PI, I just flash new os and begin, Thats not the case now.
How to completely delete opencv built from source.