ubuntu20.04安装DS-SLAM运行环境,安装opencv3.3.1时遇到错误,卡了几天了还没解决
[ 28%] Linking CXX executable ../../bin/opencv_test_video
/usr/bin/ld: ../../lib/libopencv_videoio.so.3.2.0: undefined reference to ff_interleaved_golomb_vlc_len' /usr/bin/ld: ../../lib/libopencv_videoio.so.3.2.0: undefined reference to
avpriv_aac_parse_header'
/usr/bin/ld: ../../lib/libopencv_videoio.so.3.2.0: undefined reference to avpriv_copy_pce_data' /usr/bin/ld: ../../lib/libopencv_videoio.so.3.2.0: undefined reference to
ff_interleaved_dirac_golomb_vlc_code'
/usr/bin/ld: ../../lib/libopencv_videoio.so.3.2.0: undefined reference to `ff_interleaved_ue_golomb_vlc_code'
collect2: error: ld returned 1 exit status
make[2]: *** [modules/video/CMakeFiles/opencv_test_video.dir/build.make:283:bin/opencv_test_video] 错误 1
make[1]: *** [CMakeFiles/Makefile2:3990:modules/video/CMakeFiles/opencv_test_video.dir/all] 错误 2
make: *** [Makefile:166:all] 错误 2
cv::rectangle(img, a, b, cv::Scalar(238, 134, 28), 3);
cv::putText(img, s, c, cv::FONT_HERSHEY_COMPLEX, 1.5, cv::Scalar(0,0,205), 2);//Scalar颜BGR
在调用这两个函数时,根据其参数向调整一个好看的颜色标注,使用cv::Scalar(a,b,c),没看具体定义,很坑,发现a,b,c参数是BGR形式,需要自己调整一下
另外,RGB色彩,参考
今日进度:搞定