private Rectangle FindDest(Bitmap bmpSrc, Point pntDest)
{
Color clrPix = bmpSrc.GetPixel(pntDest.X, pntDest.Y); //种子点
List <Point> listTgtPnt = new List <Point>(); //目标点List
DomainTag[,] matDomTag = new DomainTag[bmpSrc.Width, bmpSrc.Height]; //按像素标记连通域的矩阵
/// 1. 按照种子RGB标记目标像素
for (int i = 0; i < bmpSrc.Height; ++i)
{
for (int j = 0; j < bmpSrc.Width; ++j)
{
if (bmpSrc.GetPixel(j, i) == clrPix)
{
matDomTag[j, i]._IsTarget = true; //标记为目标
matDomTag[j, i]._DomInd = -1; //未标记连通域
listTgtPnt.Add(new Point(j, i)); //加入到目标点List
if (mIfDebug)
{
mBmpDebug.SetPixel(j, i, Color.Purple);
}
}
else
{
matDomTag[j, i]._IsTarget = false; //缺省标记为非目标
}
}
}
/// 2. 8邻域 连通域检测
List <List <Point> > listDoms = ConnectedDomainDetect(listTgtPnt, matDomTag); //连通域List
if (listDoms.Count < 1)
{
return(new Rectangle());
}
/// 3. 求Jumper矩形
Point pntLeftTop = new Point(bmpSrc.Width, bmpSrc.Height);
Point pntRightBot = new Point(0, 0);
foreach (Point pntPix in listDoms[0])
{
if (pntLeftTop.X > pntPix.X)
{
pntLeftTop.X = pntPix.X;
}
if (pntLeftTop.Y > pntPix.Y)
{
pntLeftTop.Y = pntPix.Y;
}
if (pntRightBot.X < pntPix.X)
{
pntRightBot.X = pntPix.X;
}
if (pntRightBot.Y < pntPix.Y)
{
pntRightBot.Y = pntPix.Y;
}
}
return(new Rectangle(pntLeftTop.X, pntLeftTop.Y, pntRightBot.X - pntLeftTop.X, pntRightBot.Y - pntLeftTop.Y));
}
private Rectangle FindJumper(float[,,] matHsv)
{
int nHeight = matHsv.GetLength(0);
int nWidth = matHsv.GetLength(1);
List <Point> listTgtPnt = new List <Point>(); //目标点List
DomainTag[,] matDomTag = new DomainTag[nWidth, nHeight]; //按像素标记连通域的矩阵
/// 1. 按照HSV阈值标记目标像素
float[] hsv1 = new float[3] {
215, 0.07f, 0.20f
};
float[] hsv2 = new float[3] {
265, 0.31f, 0.55f
};
for (int i = 0; i < nHeight; ++i)
{
for (int j = 0; j < nWidth; ++j)
{
matDomTag[j, i]._IsTarget = false; //缺省标记为非目标
if ((hsv1[0] <= matHsv[i, j, 0] && matHsv[i, j, 0] <= hsv2[0]) &&
(hsv1[1] <= matHsv[i, j, 1] && matHsv[i, j, 1] <= hsv2[1]) &&
(hsv1[2] <= matHsv[i, j, 2] && matHsv[i, j, 2] <= hsv2[2]))
{
matDomTag[j, i]._IsTarget = true; //标记为目标
matDomTag[j, i]._DomInd = -1; //未标记连通域
listTgtPnt.Add(new Point(j, i)); //加入到目标点List
if (mIfDebug)
{
mBmpDebug.SetPixel(j, i, Color.Red);
}
}
}
}
/// 2. 8邻域 连通域检测
List <List <Point> > listDoms = ConnectedDomainDetect(listTgtPnt, matDomTag); //连通域List
if (listDoms.Count < 2)
{
return(new Rectangle());
}
/// 3. 求Jumper矩形
Point pntLeftTop = new Point(nWidth, nHeight);
Point pntRightBot = new Point(0, 0);
foreach (Point pntPix in listDoms[0])
{
if (pntLeftTop.X > pntPix.X)
{
pntLeftTop.X = pntPix.X;
}
if (pntLeftTop.Y > pntPix.Y)
{
pntLeftTop.Y = pntPix.Y;
}
if (pntRightBot.X < pntPix.X)
{
pntRightBot.X = pntPix.X;
}
if (pntRightBot.Y < pntPix.Y)
{
pntRightBot.Y = pntPix.Y;
}
}
foreach (Point pntPix in listDoms[1])
{
if (pntLeftTop.X > pntPix.X)
{
pntLeftTop.X = pntPix.X;
}
if (pntLeftTop.Y > pntPix.Y)
{
pntLeftTop.Y = pntPix.Y;
}
if (pntRightBot.X < pntPix.X)
{
pntRightBot.X = pntPix.X;
}
if (pntRightBot.Y < pntPix.Y)
{
pntRightBot.Y = pntPix.Y;
}
}
return(new Rectangle(pntLeftTop.X, pntLeftTop.Y, pntRightBot.X - pntLeftTop.X, pntRightBot.Y - pntLeftTop.Y));
}
