private static void GenerateTemplate(ImageProcessor processor, Bitmap bmp, string name)
{
processor.ProcessImage(new Image<Bgr, byte>(bmp));
//find max contour
if (processor.samples.Count > 0)
{
processor.samples.Sort((t1, t2) => -t1.sourceArea.CompareTo(t2.sourceArea));
processor.samples[0].name = name;
processor.templates.Add(processor.samples[0]);
}
}
public void MergeContours(double owerflowContoursRatio, double adaptiveThresholdParameter, int adaptiveThresholdBlockSize)
{
int secondBiggestContourIndex;
ImageProcessor processor = new ImageProcessor();
processor.equalizeHist = false;
processor.finder.maxRotateAngle = Math.PI / 4;
processor.minContourArea = 10;
processor.minContourLength = 15;
processor.finder.maxACFDescriptorDeviation = 2;
processor.finder.minACF = 0.96;
processor.finder.minICF = 0.85;
processor.blur = false;
processor.noiseFilter = false;
processor.cannyThreshold = 50;
processor.adaptiveThresholdBlockSize = 1;
processor.adaptiveThresholdParameter = 0.5;
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(_digit)), true);
if (processor.contours.Count < 3)
{
FindBestContour(processor, owerflowContoursRatio);
FillContour();
_digit = _filledContour;
return;
}
while (processor.contours.Count > 2)
{
AdaptiveThreshold(adaptiveThresholdParameter, adaptiveThresholdBlockSize);
FillAllContours(processor, owerflowContoursRatio);
_digit = _filledContour;
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(_digit)), true);
SortContour(processor, out secondBiggestContourIndex);
processor.minContourArea = (int)(processor.contours[secondBiggestContourIndex].Area / 4);
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(_digit)), true);
}
}
public void FindMaxContour(ImageProcessor processor)
{
int secondLongestContourIndex;
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(_digit)), true);
_contour = processor.contours[SortContour(processor, out secondLongestContourIndex)];
}
public void FindBestContour(ImageProcessor processor, double owerflowContoursRatio)
{
int secondBiggestContourIndex;
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(_digit)), true);
var biggestContourIndex = SortContour(processor, out secondBiggestContourIndex);
if (((biggestContourIndex != secondBiggestContourIndex) &&
(processor.contours[biggestContourIndex].Area / processor.contours[secondBiggestContourIndex].Area <
owerflowContoursRatio)) || (processor.contours.Count < 3))
{
_contour = processor.contours[secondBiggestContourIndex];
}
else
{
_contour = processor.contours[biggestContourIndex];
}
}
public void FillAllContours(ImageProcessor processor, double owerflowContoursRatio)
{
Bitmap newFill = new Bitmap(_digit.Width, _digit.Height);
using (Graphics contourGraph = Graphics.FromImage(newFill))
{
contourGraph.Clear(Color.Black);
}
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(_digit)), true);
for (int contourCounter = 0; contourCounter < processor.contours.Count; contourCounter++)
{
using (Graphics contourGraph = Graphics.FromImage(newFill))
{
contourGraph.FillPolygon(new SolidBrush(Color.White), processor.contours[contourCounter].ToArray());
}
}
_filledContour = newFill;
}
public Image DisplayAllContours(ImageProcessor processor, Color maxContourColor, Color secondMaxContourColor, Color baseContourColor)
{
Image resultDigit = new Bitmap(_digit);
processor.ProcessImage(new Image<Bgr, Byte>(new Bitmap(resultDigit)), true);
int secondLongestContourIndex;
var longestContourIndex = SortContour(processor, out secondLongestContourIndex);
for (int contourIndex = 0; contourIndex < processor.contours.Count; contourIndex++)
{
if (processor.contours[contourIndex].Total > 1)
{
using (Graphics digitGraph = Graphics.FromImage(resultDigit))
{
if (contourIndex == longestContourIndex)
{
digitGraph.DrawLines(new Pen(maxContourColor), processor.contours[contourIndex].ToArray());
}
else if (contourIndex == secondLongestContourIndex)
{
digitGraph.DrawLines(new Pen(secondMaxContourColor), processor.contours[contourIndex].ToArray());
}
else
{
digitGraph.DrawLines(new Pen(baseContourColor), processor.contours[contourIndex].ToArray());
}
}
}
}
return resultDigit;
}