openCV内置画图函数以及画虚线函数的实现

话不多说，直接上代码：

#include <QCoreApplication>

#include <cv.h>

#include <highgui.h>

#include <QDebug>

#include <stdio.h>

void  drawDashRect(CvArr* img,int linelength,int dashlength,CvRect* blob,CvScalar color,int thickness);

int main(int argc, char *argv[])

{
 
 

    QCoreApplication a(argc, argv);

    IplImage* cat = cvLoadImage("D:/Pictures/cat.jpg");

    IplImage* dog = cvLoadImage("D:/Pictures/dog.jpg");

    if((cat == NULL) || (dog == NULL))

        return 1;

    qDebug() << "cat-> width = " << cat->width;

    qDebug() << "cat-> height = " <<cat->height;

    qDebug() << "dog-> width = " << dog->width;

    qDebug() << "dog-> height = " <<dog->height;

    printf("cat->widthstep = %d\n",cat->widthStep);

    printf("cat->nChannels =