[opencv]6.图片的处理：侵蚀、膨胀、反转

本文的的目标就是实现对图片的侵蚀、膨胀和反转。

具体的代码如下：

#include "stdafx.h"//由于是新建的空工程，所以需要新建stdafx.h和targetver.h两个头文件，不然会出现找不到头文件的问题
#include "opencv/cv.h"
#include "opencv/highgui.h"

int main()
{
//display the original image
IplImage* img = cvLoadImage("pic.jpg");
IplImage* imgErode = cvLoadImage("pic.jpg");
IplImage* imgDilate = cvLoadImage("pic.jpg");
IplImage* imgInvert = cvLoadImage("pic.jpg");
cvNamedWindow("MyWindow");
cvShowImage("MyWindow", img);

// 侵蚀
cvErode(img, imgErode, 0, 10);
cvNamedWindow("Eroded");
cvShowImage("Eroded", imgErode);
//膨胀
cvDilate(img, imgDilate, 0, 3);
cvNamedWindow("Dilated");
cvShowImage("Dilated", imgDilate);
// 反转
cvNot(img, imgInvert);
cvNamedWindow("Inverted");
cvShowImage("Inverted", imgInvert);

cvWaitKey(0);

//cleaning up
cvDestroyWindow("MyWindow");
cvDestroyWindow("Eroded");
cvReleaseImage(&img);

return 0;
}

1.需要把pic.jpg拷贝到工程目录同cpp文件的文件夹下。

2.需要定义stdafx.h和targetver.h头文件。

//stdafx.h
// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, but
// are changed infrequently
//

#pragma once

#include "targetver.h"

#include <stdio.h>
#include <tchar.h>

//targetver.h
#pragma once

// Including SDKDDKVer.h defines the highest available Windows platform.

// If you wish to build your application for a previous Windows platform, include WinSDKVer.h and
// set the _WIN32_WINNT macro to the platform you wish to support before including SDKDDKVer.h.

#include <SDKDDKVer.h>

3.直接运行会碰到fopen方法不安全（error:C4996）的问题。

问题提示见下图：



解决办法：加上#pragma warning(disble:4996)这句话



4.运行效果如下：