#-------------------------------------------------

#

# Project created by QtCreator --29T16::

#

#-------------------------------------------------

QT       -= core gui

TARGET = dlldemo

TEMPLATE = lib

CONFIG += staticlib

SOURCES += dlldemo.cpp

HEADERS += dlldemo.h

INCLUDEPATH += D:/sdk/opencv/build/include

LIBS += -LD:/sdk/opencv/build/x86/vc12/lib \

    -lopencv_calib3d249d \

    -lopencv_contrib249d \

    -lopencv_core249d \

    -lopencv_features2d249d \

    -lopencv_flann249d \

    -lopencv_gpu249d \

    -lopencv_highgui249d \

    -lopencv_imgproc249d \

    -lopencv_legacy249d \

    -lopencv_ml249d \

    -lopencv_nonfree249d \

    -lopencv_objdetect249d \

    -lopencv_ocl249d \

    -lopencv_photo249d \

    -lopencv_stitching249d \

    -lopencv_superres249d \

    -lopencv_ts249d \

    -lopencv_video249d \

    -lopencv_videostab249d

unix {

    target.path = /usr/lib

    INSTALLS += target

}

#ifndef DLLDEMO_H

#define DLLDEMO_H

#include <iostream>

#include <fstream>

#include <sstream>

#include <string>

#include <vector>

#include <opencv2/objdetect/objdetect.hpp>

#include <opencv2/highgui/highgui.hpp>

#include <opencv2/imgproc/imgproc.hpp>

#include <opencv2/core/core.hpp>

using namespace std;

using namespace cv;

class Dlldemo

{

public:

    Dlldemo();

    int addtwo(int a,int b);

    Mat togray(Mat img);

    void draw_text(cv::Mat &canvas, const char *str, int x, int y, float scale = 1.0);

};

#endif // DLLDEMO_H

#include "dlldemo.h"

Dlldemo::Dlldemo()

{

}

int Dlldemo::addtwo(int a, int b)

{

    return a+b;

}

Mat Dlldemo::togray(Mat img)

{

    cv::Mat greyMat;

    cv::cvtColor(img, greyMat, CV_BGR2GRAY);

    draw_text (greyMat,"#by dll function", , ,0.8);

    return greyMat;

}

void Dlldemo::draw_text(Mat &canvas, const char *str, int x, int y, float scale)

{

    int w = ;

    for(int dy = -w; dy <= w; ++dy) {

        for (int dx = -w; dx <= w; ++dx) {

            cv::putText(canvas, str, cv::Point(x+dx,y+dy), cv::FONT_HERSHEY_SIMPLEX, scale, cv::Scalar(,,), , CV_AA);

        }

    }

    cv::putText(canvas, str, cv::Point(x,y), cv::FONT_HERSHEY_SIMPLEX, scale, cv::Scalar(,,), , CV_AA);

}

LIBS += -LD:/project/testdlldemo \

    -ldlldemo

INCLUDEPATH += D:/sdk/opencv/build/include

LIBS += -LD:/sdk/opencv/build/x86/vc12/lib \

    -lopencv_calib3d249d \

    -lopencv_contrib249d \

    -lopencv_core249d \

    -lopencv_features2d249d \

    -lopencv_flann249d \

    -lopencv_gpu249d \

    -lopencv_highgui249d \

    -lopencv_imgproc249d \

    -lopencv_legacy249d \

    -lopencv_ml249d \

    -lopencv_nonfree249d \

    -lopencv_objdetect249d \

    -lopencv_ocl249d \

    -lopencv_photo249d \

    -lopencv_stitching249d \

    -lopencv_superres249d \

    -lopencv_ts249d \

    -lopencv_video249d \

    -lopencv_videostab249d

#include <iostream>

#include "dlldemo.h"

using namespace std;

int main()

{

    cout << "Hello World!" << endl;

    int a=;

    int b=;

    Dlldemo dll;

    printf("sum of a,b is :%d",dll.addtwo (a,b));

    cv::Mat canvas;

    canvas = cv::imread("d://nike.jpg", -);

    Mat result= dll.togray (canvas);

    imshow ("dll result",result);

    waitKey ();

    return ;

}