ubuntu下opencv使用cvNamedWindow()和cvShowImage()出錯的解決方法

重裝系統和opencv，編譯運行顯示一副圖像的程序，報錯以下

1 liurf@liurf-Lenovo-G470:~/WorkSpace/slambook-master/ch5/imageBasics$ ./imageBasics ubuntu.png 
2 圖像寬爲1200,高爲674,通道數爲3
3 OpenCV Error: Unspecified error (The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script) in cvShowImage, file /home/liurf/opencv/modules/highgui/src/window.cpp, line 501
4 terminate called after throwing an instance of 'cv::Exception'
5   what():  /home/liurf/opencv/modules/highgui/src/window.cpp:501: error: (-2) The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. If you are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-run cmake or configure script in function cvShowImage
6 
7 已放棄 (核心已轉儲)

根據提示安裝gtk2.0和pkg-config，運行不了，仔細看。

咱們進入到opencv源代碼庫，找到highgui庫下面，具體路徑「/home/liurf/opencv/modules/highgui」，依次運行「cmake .」，"make -j4"，"sudo make install"，以後再進入咱們的程序下面從新編譯運行就一切正常了。

每次編譯opencv都會出現，解決了就沒管它，仍是記下來免得百度浪費時間。