2016-02-29 64 views
-1

我實際上在OpenCV中存在Iterator問題。我正在從LabView讀取圖像並將其存儲在Mat imgIn中。之後,我爲圖像處理Mat imOut創建了第二個Mat。當我克隆它並嘗試將其發送回LabView時,我得到一張黑色圖像,因此沒有發送任何信息。OpenCV MatIterator錯誤

#include <windows.h> 
#include "extcode.h" 
#include <iostream> 
#include <stdio.h> 
#include "opencv2/opencv.hpp" 
#include "opencv2/core.hpp" 
#include "opencv2/core/utility.hpp" 
#include "opencv2/imgproc.hpp" 
#include "opencv2/imgcodecs.hpp" 
#include "opencv2/highgui.hpp" 

using namespace cv; 
using namespace std; 

// --- Dll entry point --- 
BOOL APIENTRY DllMain(HANDLE hModule, 
        DWORD ul_reason_for_call, 
        LPVOID lpReserved 
       ) 
{ 
UNREFERENCED_PARAMETER(hModule); 
UNREFERENCED_PARAMETER(lpReserved); 
switch (ul_reason_for_call) 
{ 
case DLL_PROCESS_ATTACH: 
case DLL_THREAD_ATTACH: 
case DLL_THREAD_DETACH: 
case DLL_PROCESS_DETACH: 
    break; 
} 
return TRUE; 
} 


    #ifdef __cplusplus 
    extern "C" { 
    #endif /* __cplusplus */ 


    __declspec(dllexport) INT myDoSomething(short* M, short* N, short* image, int SizeX, int SizeY, short* imgOut){ 

// Alloc Memory 
Mat imgIn(SizeX, SizeY, CV_16S, &image[0]); 
Mat imOut(SizeX, SizeY, CV_16S, &imgOut[0]); 


// Clone Source Image 

imOut = imgIn.clone(); 

// Get size for DFT 

*M = getOptimalDFTSize(imgIn.rows); 
*N = getOptimalDFTSize(imgIn.cols); 

MatIterator_ it;// = imOut.begin<short>(); 

//for(int x=0;x<=SizeX;x++){ 

    //imgOut = imOut.at<short>(x,y); 
//} 

return 0; 
} 



#ifdef __cplusplus 
} 
#endif /* __cplusplus */ 

在LabView中一切都是正確的。 VS錯誤:

Fehler 1 error C2955: "cv::MatIterator_": Für die Verwendung der template-Klasse ist eine template-Argumentliste erforderlich.

回答

2

MatIterator_是一個模板類。

這正是,錯誤說什麼,你必須指定類型(以及爲開始()和end()):

MatIterator_<short> it = imOut.begin<short>(); 
for (; it != imOut.end<short>(); ++it) 
{ 
    ... 
}