摘要： 错误如下：OpenCV Error: Assertion failed (nchannels == 3) in getBackgroundImage,file/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_graphics_opencv/opencv/work/OpenCV-2.4.3/modules/video/src/bgfg_gaussmix2.cpp, line 579帧图片和背景图片均要求为三通道格式，如下所示：Backgro 阅读全文