stdafx.cpp

有指导的马尔可夫随机场（MRF）的图像分割代码

// stdafx.cpp : source file that includes just the standard includes
//	MRF_imgSeg.pch will be the pre-compiled header
//	stdafx.obj will contain the pre-compiled type information

#include "stdafx.h"
int mouseEnable=0;
IplImage *img;
CvRect selection;
CvRect area[30];
int classN;
int selected;
int Number=0;
void on_mouse( int event, int x, int y, int flags, void* param )
{
	static int select_object=0;
	static CvPoint origin;
	if (img==NULL) {
		return;
	}
	if (!mouseEnable) {
		return;
	}
	
    if( img->origin )
        y = img->height - y;
	
    if( select_object )
    {
        selection.x = MIN(x,origin.x);
        selection.y = MIN(y,origin.y);
        selection.width = selection.x + CV_IABS(x - origin.x);
        selection.height = selection.y + CV_IABS(y - origin.y);
        
        selection.x = MAX( selection.x, 0 );
        selection.y = MAX( selection.y, 0 );
        selection.width = MIN( selection.width, img->width );
        selection.height = MIN( selection.height, img->height );
        selection.width -= selection.x;
        selection.height -= selection.y;
    }
	
    switch( event )
    {
    case CV_EVENT_LBUTTONDOWN:
        origin = cvPoint(x,y);
        selection = cvRect(x,y,0,0);
        select_object = 1;
        break;
    case CV_EVENT_LBUTTONUP:
        select_object = 0;
		selected=1;
        if( selection.width > 0 && selection.height > 0 )
		{
			area[Number]=selection;
			Number++;
			if (Number>=classN) {
				Number=0;
				mouseEnable=0;
			}
		}
		AfxGetMainWnd()->PostMessage(WM_LBUTTONUP);
		
        break;
    }
}