OpenCV的生成錯誤

Question

我試圖顯示圖像

#include "opencv2/highgui/highgui.hpp" 
#include "opencv2/imgproc/imgproc.hpp" 
#include <iostream> 
#include <stdio.h> 

using namespace std; 
using namespace cv; 

    /** 
    * @function main 
    */ 
int main(int argc, char** argv) 
{ 
    Mat src, dst; 

/// Load image 
src = imread("img.jpg", 1); 

    if(!src.data) 
    { return -1; } 

    // Separate the image in 3 places (B, G and R) 
    vector<Mat> bgr_planes; 
    split(src, bgr_planes); 

    /// Establish the number of bins 
    int histSize = 256; 

    /// Set the ranges (for B,G,R)) 
    float range[] = { 0, 256 } ; 
    const float* histRange = { range }; 

    bool uniform = true; bool accumulate = false; 

    Mat b_hist, g_hist, r_hist; 

    /// Compute the histograms: 
    calcHist(&bgr_planes[0], 1, 0, Mat(), b_hist, 1, &histSize, &histRange, uniform, accumulate); 
    calcHist(&bgr_planes[1], 1, 0, Mat(), g_hist, 1, &histSize, &histRange, uniform, accumulate); 
    calcHist(&bgr_planes[2], 1, 0, Mat(), r_hist, 1, &histSize, &histRange, uniform, accumulate); 

// Draw the histograms for B, G and R 
    int hist_w = 512; int hist_h = 400; 
    int bin_w = cvRound((double) hist_w/histSize); 

    Mat histImage(hist_h, hist_w, CV_8UC3, Scalar(0,0,0)); 

/// Normalize the result to [ 0, histImage.rows ] 
    normalize(b_hist, b_hist, 0, histImage.rows, NORM_MINMAX, -1, Mat()); 
    normalize(g_hist, g_hist, 0, histImage.rows, NORM_MINMAX, -1, Mat()); 
    normalize(r_hist, r_hist, 0, histImage.rows, NORM_MINMAX, -1, Mat()); 

/// Draw for each channel 
for(int i = 1; i < histSize; i++) 
{ 
    line(histImage, Point(bin_w*(i-1), hist_h - cvRound(b_hist.at<float>(i-1))) , 
        Point(bin_w*(i), hist_h - cvRound(b_hist.at<float>(i))), 
        Scalar(255, 0, 0), 2, 8, 0 ); 
    line(histImage, Point(bin_w*(i-1), hist_h - cvRound(g_hist.at<float>(i-1))) , 
        Point(bin_w*(i), hist_h - cvRound(g_hist.at<float>(i))), 
        Scalar(0, 255, 0), 2, 8, 0 ); 
    line(histImage, Point(bin_w*(i-1), hist_h - cvRound(r_hist.at<float>(i-1))) , 
        Point(bin_w*(i), hist_h - cvRound(r_hist.at<float>(i))), 
        Scalar(0, 0, 255), 2, 8, 0 ); 
} 

/// Display 
namedWindow("calcHist Demo", CV_WINDOW_AUTOSIZE); 
imshow("calcHist Demo", histImage); 
waitKey(0); 

return 0; 
} 

的直方圖，但我得到這個錯誤，當我嘗試構建它，所以請如果你能幫助它的將是巨大的;）

error LNK2001: symbole externe non résolu "void __cdecl cv::calcHist(class cv::Mat const *,int,int const *,class cv::Mat const &,class cv::Mat &,int,int const *,float const * *,bool,bool)" (?calcHist@cv@@YAXPBVMat@1@HPBHABV21@AAV21@H1PAPBM_N5@Z) 

我已經測試的配置，我可以顯示樣本圖像

Answer 1

要使其工作，你需要把以下庫到項目的性質，即Linker > Input > Additional Dependencies：

opencv_imgproc.lib 
opencv_highgui.lib 

更清楚，如果你用OpenCV的2.4.8在調試模式，你應該把以下兩個庫：

opencv_imgproc248d.lib 
opencv_highgui248d.lib