opencv2.1链接lib文件时需注意区分debug与release
今年4月份opencv就出了2.1版本,一直没怎么用过,今天用了下,发现它越来越向Matlab的image processing toolbox靠近了,比如读入图像可以用imread(),显示图像用imshow().写了个最简单不过的例子,读入图像然后显示出来:
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
#include "cv.h" // include standard OpenCV headers, same as before
#include "highgui.h"
#include <stdio.h>
using namespace cv; // all the new API is put into "cv" namespace. Export its content
int main( int argc, char** argv )
{
const char* imagename = "lena.jpg";
Mat img = imread(imagename); // the newer cvLoadImage alternative, MATLAB-style function
if(img.empty())
{
fprintf(stderr, "Can not load image %s\n", imagename);
return -1;
}
if( !img.data ) // check if the image has been loaded properly
return -1;
// this is counterpart for cvNamedWindow
namedWindow("image", CV_WINDOW_AUTOSIZE);
imshow("image", img);
waitKey();
return 0;
}
运行时却总说没有找到图片,可我的图片明明就在当前文件夹下。后来发现是Project property设置的有问题:在工程设置里Project->Property->Linker->Input的Additional Dependencies,我以前习惯于不区分debug和release,全部用release版,这在2.1之前的版本似乎没问题,但在2.1里,debug下就必须用debug版,即使用cv210d.lib cxcore210d.lib highgui210d.lib
大家可以尝试下看有没有我说的问题。