}//end
private void writeLicensePlateCharsOnImage(Mat imgOriginalScene, PossiblePlate licPlate)
{
Point ptCenterOfTextArea = new Point();
Point ptLowerLeftTextOrigin = new Point();
FontFace fontFace = FontFace.HersheySimplex;
double dblFontScale = licPlate.imgPlate.Height / 30;
int intFontThickness = (int)(dblFontScale * 1.5);
Size textSize = new Size();
textSize.Width = (int)(dblFontScale * 18.5 * licPlate.strChars.Length);
textSize.Height = (int)(dblFontScale * 25);
ptCenterOfTextArea.X = (int)(licPlate.rrLocationOfPlateInScene.Center.X);
if (licPlate.rrLocationOfPlateInScene.Center.Y < (imgOriginalScene.Height * 0.75))
{
ptCenterOfTextArea.Y = (int)(licPlate.rrLocationOfPlateInScene.Center.Y + (int)((double)(licPlate.rrLocationOfPlateInScene.MinAreaRect().Height) * 1.6));
}
else
{
ptCenterOfTextArea.Y = (int)(licPlate.rrLocationOfPlateInScene.Center.Y - (int)((double)(licPlate.rrLocationOfPlateInScene.MinAreaRect().Height) * 1.6));
}
ptLowerLeftTextOrigin.X = (int)(ptCenterOfTextArea.X - (textSize.Width / 2));
ptLowerLeftTextOrigin.Y = (int)(ptCenterOfTextArea.Y + (textSize.Height / 2));
CvInvoke.PutText(imgOriginalScene, licPlate.strChars, ptLowerLeftTextOrigin, fontFace, dblFontScale, SCALAR_YELLOW, intFontThickness);
}
}//end btnOpneFile
private void drawRedRectangleAroundPlate(Mat imgOriginalScene, PossiblePlate licPlate)
{
PointF[] ptfRectPoints = new PointF[4];
ptfRectPoints = licPlate.rrLocationOfPlateInScene.GetVertices();
Point pt0 = new Point((int)(ptfRectPoints[0].X), (int)(ptfRectPoints[0].Y));
Point pt1 = new Point((int)(ptfRectPoints[1].X), (int)(ptfRectPoints[1].Y));
Point pt2 = new Point((int)(ptfRectPoints[2].X), (int)(ptfRectPoints[2].Y));
Point pt3 = new Point((int)(ptfRectPoints[3].X), (int)(ptfRectPoints[3].Y));
CvInvoke.Line(imgOriginalScene, pt0, pt1, SCALAR_RED, 2);
CvInvoke.Line(imgOriginalScene, pt1, pt2, SCALAR_RED, 2);
CvInvoke.Line(imgOriginalScene, pt2, pt3, SCALAR_RED, 2);
CvInvoke.Line(imgOriginalScene, pt3, pt0, SCALAR_RED, 2);
}//end
}//end possibleplateinscene
public static PossiblePlate extractPlate(Mat imgOriginal, List <PossibleChar> listOfMatchingChars)
{
PossiblePlate possiblePlate = new PossiblePlate();
listOfMatchingChars.Sort((firstChar, secondChar) => firstChar.intCenterX.CompareTo(secondChar.intCenterX));//??????????????????????
double dblPlateCenterX = (double)(listOfMatchingChars[0].intCenterX + listOfMatchingChars[listOfMatchingChars.Count - 1].intCenterX) / 2.0;
double dblPlateCenterY = (double)(listOfMatchingChars[0].intCenterY + listOfMatchingChars[listOfMatchingChars.Count - 1].intCenterY) / 2.0;
PointF ptfPlateCenter = new PointF((float)dblPlateCenterX, (float)dblPlateCenterY);
int intPlateWidth = (int)((double)(listOfMatchingChars[listOfMatchingChars.Count - 1].boundingRect.X + listOfMatchingChars[listOfMatchingChars.Count - 1].boundingRect.Width - listOfMatchingChars[0].boundingRect.X) * PLATE_WIDTH_PADDING_FACTOR);
int intTotalOfCharHeights = 0;
foreach (PossibleChar matchingChar in listOfMatchingChars)
{
intTotalOfCharHeights = intTotalOfCharHeights + matchingChar.boundingRect.Height;
}
double dblAverageCharHeight = (double)(intTotalOfCharHeights) / (double)(listOfMatchingChars.Count);
int intPlateHeight = (int)(dblAverageCharHeight * PLATE_HEIGHT_PADDING_FACTOR);
double dblOpposite = listOfMatchingChars[listOfMatchingChars.Count - 1].intCenterY - listOfMatchingChars[0].intCenterY;
double dblHypotenuse = DetectChars.distanceBetweenChars(listOfMatchingChars[0], listOfMatchingChars[listOfMatchingChars.Count - 1]);
double dblCorrectionAngleInRad = Math.Asin(dblOpposite / dblHypotenuse);
double dblCorrectionAngleInDeg = dblCorrectionAngleInRad * (180.0 / Math.PI);
possiblePlate.rrLocationOfPlateInScene = new RotatedRect(ptfPlateCenter, new SizeF((Single)intPlateWidth, (Single)intPlateHeight), (Single)dblCorrectionAngleInDeg);
Mat rotationMatrix = new Mat();
Mat imgRotated = new Mat();
Mat imgCropped = new Mat();
CvInvoke.GetRotationMatrix2D(ptfPlateCenter, dblCorrectionAngleInDeg, 1.0, rotationMatrix);
CvInvoke.WarpAffine(imgOriginal, imgRotated, rotationMatrix, imgOriginal.Size);
CvInvoke.GetRectSubPix(imgRotated, possiblePlate.rrLocationOfPlateInScene.MinAreaRect().Size, possiblePlate.rrLocationOfPlateInScene.Center, imgCropped);
possiblePlate.imgPlate = imgCropped;
return(possiblePlate);
}//end extractplate
private void btnOpenFile_Click(object sender, EventArgs e)
{
Mat imgOriginalScene = new Mat();
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Multiselect = false;
openFileDialog.Filter = "Img Files|*.bmp;*.png;*.jpg;*.jpeg";
openFileDialog.DefaultExt = ".png";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
//Image<Bgr, byte> input_img = new Image<Bgr, byte>(openFileDialog.FileName);
//imgOriginalScene = input_img.Mat;
//ibOriginal.Image = imgOriginalScene;
lblChosenFile.Text = openFileDialog.FileName;
CvInvoke.DestroyAllWindows();
imgOriginalScene = CvInvoke.Imread(openFileDialog.FileName);
ibOriginal.Image = imgOriginalScene;
}
List <PossiblePlate> listOfPossiblePlates = DetectPlate.detectPlatesInScene(imgOriginalScene);
listOfPossiblePlates = DetectChars.detectCharsInPlates(listOfPossiblePlates);
if (listOfPossiblePlates == null)
{
MessageBox.Show("No detected :( :(");
}
else if (listOfPossiblePlates.Count == 0)
{
MessageBox.Show("No detected :( :(");
}
else
{
listOfPossiblePlates.Sort((onePlate, otherPlate) => otherPlate.strChars.Length.CompareTo(onePlate.strChars.Length));
PossiblePlate licPlate = listOfPossiblePlates[0];
CvInvoke.Imshow("final imgPlate", licPlate.imgPlate);
CvInvoke.Imshow("final imgThresh", licPlate.imgThresh);
if (licPlate.strChars.Length == 0)
{
MessageBox.Show("No detected characters :( :(");
}
txtInfo.Text = DetectPlate.tmptxt;
//drawRedRectangleAroundPlate(imgOriginalScene, licPlate); do dorobienia funkcja
drawRedRectangleAroundPlate(imgOriginalScene, licPlate);
MessageBox.Show(licPlate.strChars);
writeLicensePlateCharsOnImage(imgOriginalScene, licPlate);
ibOriginal.Image = imgOriginalScene;
CvInvoke.Imwrite("imgOriginalScene.png", imgOriginalScene);
}
}//end btnOpneFile
