The function is not implemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support.

Ubuntu14.04安裝好opencv3.0.0之後，進行測試:
$./DisplayImage lena.jpg
出現以下問題：
OpenCV Error: Unspecified error (The function is notimplemented. Rebuild the library with Windows, GTK+ 2.x or Carbon support. Ifyou are on Ubuntu or Debian, install libgtk2.0-dev and pkg-config, then re-runcmake or configure script) in cvNamedWindow, file/home/aborn/software/OpenCV-3.0.0/modules/highgui/src/window.cpp, line …
 
網上給的解釋是： GTK+2.x要先於OpenCV安裝(You should remove the current installation of opencv from yoursystem; rebuild your opencv lib after installing gtk dev lib in thecorrect path; and reinstall the compiled opencv lib. )
 
解決方法：
1.卸載opencv
（1）移除式卸載：apt-getremove 軟件名1 軟件名2 …;（移除軟件包）
（2）清除式卸載：apt-getpurge remove 軟件名1 軟件名2;(同時清除配置)
建議選擇清除式卸載
（3）卸載不管用的話，直接到opencv解壓目錄把解壓出的opencv包刪掉
 
2.查看沒安裝的文件，沒裝的裝上
之前安裝時的命令：
sudo apt-get install build-essential cmakelibgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev 
查看方法：
$ dpkg –listfiles cmake(查詢系統中屬於cmake的文件)
$ dpkg –listfiles libgtk2.0-dev(查詢系統中屬於libgtk2.0-dev的文件)
$ dpkg –listfiles 其他包名
 
3.重新安裝opencv並進行測試
可參考文章：Ubuntu14.04安裝opencv3.0.0:
http://blog.csdn.net/qingyanyichen/article/details/51621982