移植opencv到ARM開發板

安裝交叉編譯鏈

我使用的是arm-linux-gcc 4.3.2，解壓到目錄/usr/local/arm/4.3.2，然後在環境變數path中增加/usr/local/arm/4.3.2/bin

安裝cmake

opencv 2.0之後的版本，必須使用cmake建立makefile。我使用的cmake版本是2.8.2，解壓到目錄/usr/local/cmake-2.8.2-linux-i386，然後在環境變數path中增加/usr/local/cmake-2.8.2-linux-i386/bin

解壓opencv 2.4.9建立build目錄，作為cmake編譯arm版本的工作目錄執行cmake-gui

（經過準備工作將cmake解壓到/usr/local/cmake-2.8.2-linux-i386，其中cmake-gui就在該目錄下）

可參考安裝過程出現很多錯誤

測試程式如下：

然後makefile如下：

all:test
cflags=-wall
opencv_include=-i /usr/local/arm/include/opencv
cc = arm-linux
-g++
opencv_link =-l/usr/local/arm/lib -lcv
-lcxcore
-lhighgui
-lpthread
-lrt
%:%.cpp
$(cc) $(opencv_include) $<
-o $@ $(opencv_link) `pkg-config opencv --libs`
-ldl
.phony:clean
clean:
rm -f test

此處的pkg-…..–libs兩邊的 ` 是左上角的，這裡寫錯，編譯測試程式的時容易出現：

collect2: error: ld returned 1 exit status

可參考：

另外：

在上面的makefile中：

opencv_link =-l/usr/local/arm/lib -lcv -lcxcore -lhighgui -lpthread

-lrt

修改1

-lcv應該是libcv.so庫檔案，但是我在make install後的lib裡沒有發現libcv.so檔案，於是將其更改

修改2

猜測libcxcore.so應該是libopencv_core.so

修改3

libhighgui.so為libopencv_highgui.so

opencv_link =-l/usr/local/arm/lib -lopencv_calib3d -lopencv_core -lopencv_highgui -lpthread

-lrt

但是編譯後出現

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 cvnamedwindow, file /work/opencv-2.4.9/modules/highgui/src/window.cpp, line 483

terminate called after throwing an instance of 『cv::exception』

what(): /work/opencv-2.4.9/modules/highgui/src/window.cpp:483: 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 cvnamedwindow

aborted

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