int FindPupil(out int hMid, out int vMid)
{
imageDebugBitmap.ApplyTransform(new Grayscale());
imageDebugBitmap.ApplyTransform(new Binaryzation(6));
UpdateProjections();
ClearBitmapByProjectionValue(verticalProjection.Average(), horizontalProjection.Average());
int vStart;
int vEnd;
var height = GetLongestSegment(verticalProjection, out vStart, out vEnd);
vMid = (vStart + vEnd) / 2;
int hStart;
int hEnd;
var width = GetLongestSegment(horizontalProjection, out hStart, out hEnd);
hMid = (hStart + hEnd) / 2;
int radius = (height + width) / 4;
if (Math.Abs(width - height) > (width + height) / 4)
{
ClearBitmapByProjectionValue(null, horizontalProjection.Where(x => x != 0).Average());
UpdateProjections();
ClearNotLongest();
UpdateProjections();
height = GetLongestSegment(verticalProjection, out vStart, out vEnd);
vMid = (vStart + vEnd) / 2;
width = GetLongestSegment(horizontalProjection, out hStart, out hEnd);
hMid = (hStart + hEnd) / 2;
radius = (height + width) / 4;
}
DrawProjection();
return(radius);
}
int FindIris(int hPupilMid, int vPupilMid, int pupilR)
{
int clipingRadius = 5 * pupilR;
imageDebugBitmap = ClipImage(imageResult, new Rectangle(hPupilMid - clipingRadius, vPupilMid - clipingRadius, 2 * clipingRadius, 2 * clipingRadius));
statistics = new ImageStatistics(imageDebugBitmap);
//imageDebugBitmap.ApplyTransform(new HistogramEqualization());
imageDebugBitmap.ApplyTransform(new Binaryzation(1, hPupilMid - pupilR, hPupilMid + pupilR));
int factor = pupilR / 5;
imageDebugBitmap.ApplyTransform(new Dilation(factor));
imageDebugBitmap.ApplyTransform(new Erosion(factor));
int irisR1 = 0, irisR2 = 0, irisR3 = 0;
for (int i = 0; i < imageDebugBitmap.Width / 2; i++)
{
if (imageDebugBitmap.GetPixel(i, imageDebugBitmap.Height / 2).R != 0)
{
imageDebugBitmap.SetPixel(i, imageDebugBitmap.Height / 2, Color.Red);
irisR1++;
}
else
{
break;
}
}
for (int i = imageDebugBitmap.Width - 1; i > imageDebugBitmap.Width / 2; i--)
{
if (imageDebugBitmap.GetPixel(i, imageDebugBitmap.Height / 2).R != 0)
{
imageDebugBitmap.SetPixel(i, imageDebugBitmap.Height / 2, Color.Red);
irisR2++;
}
else
{
break;
}
}
for (int i = imageDebugBitmap.Height - 1; i >= imageDebugBitmap.Height / 2; i--)
{
if (imageDebugBitmap.GetPixel(imageDebugBitmap.Height / 2, i).R != 0)
{
imageDebugBitmap.SetPixel(imageDebugBitmap.Height / 2, i, Color.Red);
irisR3++;
}
else
{
break;
}
}
UpdateProjections();
DrawProjection();
irisR1 = imageDebugBitmap.Width / 2 - irisR1;
irisR2 = imageDebugBitmap.Width / 2 - irisR2;
irisR3 = imageDebugBitmap.Width / 2 - irisR3;
var radiuses = new int[] { irisR1, irisR2, irisR3 };
int avg = (int)radiuses.Average();
radiuses = radiuses.OrderByDescending(x => Math.Abs(x - avg)).Skip(1).ToArray();
return((int)radiuses.Average());
}
public static Bitmap ApplyDifferences(this Bitmap original, Bitmap diff)
{
return(original.ApplyTransform(diff, GetNormalizedSum));
}
public static Bitmap GetDifferences(this Bitmap source, Bitmap destination)
{
return(source.ApplyTransform(destination, GetNormalizedDifference));
}
