public static Rectangle AdjustedToImageEdges(this Rectangle originRect, Rectangle imageRect)
{
var rect = new Rectangle(originRect.UpperLeft, originRect.LowerRight);
if (!imageRect.IsInside(rect.UpperLeft))
{
if (rect.UpperLeft.X < imageRect.UpperLeft.X)
{
rect.UpperLeft.X = imageRect.UpperLeft.X;
}
if (rect.UpperLeft.Y < imageRect.UpperLeft.Y)
{
rect.UpperLeft.Y = imageRect.UpperLeft.Y;
}
}
if (!imageRect.IsInside(rect.LowerRight))
{
if (rect.LowerRight.X > imageRect.LowerRight.X)
{
rect.LowerRight.X = imageRect.LowerRight.X;
}
if (rect.LowerRight.Y > imageRect.LowerRight.Y)
{
rect.LowerRight.Y = imageRect.LowerRight.Y;
}
}
return rect;
}
/// <summary>
/// Calculate new confidance value of pixel at given coordinate
/// </summary>
/// <param name="coordinate"></param>
/// <param name="pxConfidenceTerm"></param>
/// <param name="windowSize"></param>
private static double NewConfidanceValue(IntCoordinate coordinate, double[,] pxConfidenceTerm,
int windowSize)
{
var imageRect = new Rectangle(new IntCoordinate(0, 0), pxConfidenceTerm.GetLength(0),
pxConfidenceTerm.GetLength(1));
//TODO: handle boundary regions properly
return RegionHelper.Grid(coordinate.PointCenteredRectangle(windowSize))
.Select(coordPrim => imageRect.IsInside(coordPrim)
? pxConfidenceTerm[coordPrim.X, coordPrim.Y]
: 0)
.Sum()/(windowSize*windowSize);
}