// ************************* 程序 18-5 ****************************
/*** 程序功能：
    canny邊緣檢測

// ***************************************************************/

//
/*

#include "cv.h"
#include "cxcore.h"
#include "highgui.h"

int main ( int argc, char **argv )
{
	//聲明IplImage指針
	IplImage *pImg		= NULL; 
	IplImage *pCannyImg	= NULL;

	//載入圖像，強制轉化為Gray
	pImg = cvLoadImage ( "test.jpg", 0 );

	//為canny邊緣圖像申請空間
	pCannyImg = cvCreateImage ( cvGetSize ( pImg ), IPL_DEPTH_8U, 1 );
	//canny邊緣檢測，具體函數實現見邊緣檢測章節
	cvCanny ( pImg, pCannyImg, 50, 150, 3 );

	//創建窗口
	cvNamedWindow ( "src", 1 );
	cvNamedWindow ( "canny", 1 );


	//顯示圖像
	cvShowImage ( "src", pImg );
	cvShowImage ( "canny", pCannyImg );

	cvWaitKey ( 0 ); //等待按鍵

	//銷毀窗口
	cvDestroyWindow ( "src" );
	cvDestroyWindow ( "canny" );
	//釋放圖像
	cvReleaseImage ( &pImg ); 
	cvReleaseImage ( &pCannyImg ); 

	return 0;
}


  //*/