One of arguments' values is out of range

Kaphen 2014-04-18 05:30:04

做的是智能剪刀的算法，其中加进Live-Wire 2-D DP graph search搜索最优路径时，加入了以下函数SearchOptimalPath()和ifActivePixelsEmpty()，可是一运行就出现 one of arguments' values is out of range (index is out of range) in function cvPtr2D,c:\\的错误，求各位路过的大神帮帮我看一下这段代码错在哪了

//Live-Wire 2-D DP graph search

void CSegmentDlg::SearchOptimalPath()

{



	float tempTotalCost;

	int m,n,i,j;

	 while (!ifActivePixelsEmpty())//While still points to expand

	 {

		//Remove minimum cost pixel q from active list.

		double minCost=0;

	//	int m,n;

		for(i=0;i<nw;i++)

			for( j=0;j<nh;j++)

				if(ActivePixels[i][j])

				{

					if (minCost=0)

					{

						minCost=TotalCost[i][j];

						m=i;

						n=j;

					}

					else if(TotalCost[i][j]<=minCost)

					{

						minCost=TotalCost[i][j];

						m=i;

						n=j;

					}

				}

		ActivePixels[m][n]=0;

		//Mark q as expanded (i.e., processed).

		ifExpanded[m][n]=1;

		for(  j=n-1;j<=n+1;j++)

			for(i=m-1;i<=m+1;i++)

				if(i!=m&&j!=n&&i>=0&&i<nw&&j>=0&&j<nh)

					if(ifExpanded[i][j]==0)

				{

					//Compute total cost to neighbor.

					getthefD(TheResult,m,n,i,j);

					getthefG(TheResult,i,j);

					getthefZ(TheResult,i,j);

					tempTotalCost=TotalCost[m][n]+getCost();

					//Remove higher cost neighbor’s from list

					if((ActivePixels[i][j]==1)&&(tempTotalCost<TotalCost[i][j]))

					{

						ActivePixels[i][j]=0;

						TotalCost[i][j]=tempTotalCost;

						Pointers[i][j]=CPoint(m+tx,n+ty);

						CClientDC dc(this);

						 dc.MoveTo(i+tx,j+ty);

						 dc.LineTo(m+tx,n+ty);



					}

					//If neighbor not on list, 

					if(ActivePixels[i][j]==0)

					{

						//assign neighbor’s total cost,

						TotalCost[i][j]=tempTotalCost;

						// set (or reset) back pointer, what pointer??

						Pointers[i][j]=CPoint(m+tx,n+ty);

						CClientDC dc(this);

						 dc.MoveTo(i+tx,j+ty);

						 dc.LineTo(m+tx,n+ty);

						ActivePixels[i][j]=1;// and place on (or return to)  active list.

					}

				}

	 }

}





//判断List of active pixels是否为空

bool CSegmentDlg::ifActivePixelsEmpty()

{

	for(int i=0;i<256;i++)

	  {

		  for(int j=0;j<256;j++)

			if(ActivePixels[i][j]==1)

		//if(ifExpanded[i][j]==0)

			{

				return false;

			}

	  }

	return true;

}

该函数在OnLButtonDown(）以下为OnLButtonDown(）里关于调用SearchOptimalPath()的语句：

	if(mx>=0&&mx<=nw &&my<=nh&&my>=0)

	{	

		if(ifPainting==false&&(SeedPoint.x==0||SeedPoint.y==0))

		{

			ifPainting=true;

			SeedPoint=point;

			FreePoint=point;

			SeedPixel=cvGet2D(TheResult,mx,my);

			ActivePixels[mx][my]=1;

			SearchOptimalPath();

		}

	}

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