public LargeDiamond(PixelBlock referentBlock, PixelBlock centerBlock, Image image) : base(referentBlock, centerBlock)
{
Blocks = new List <PixelBlock> {
CenterBlock
};
for (var i = -2; i < 3; i++)
{
for (var j = -2; j < 3; j++)
{
//Checks if distances is two and if block is inside search window.
if (Math.Abs(i) + Math.Abs(j) != 2)
{
continue;
}
var point = new Point(CenterBlock.Position.X + i * MedicalDiamondSearchSettings.BlockSize, CenterBlock.Position.Y + j * MedicalDiamondSearchSettings.BlockSize);
if (referentBlock.IsInSearchWindow(point, MedicalDiamondSearchSettings.SearchParameterP,
MedicalDiamondSearchSettings.BlockSize, image.Width, image.Height))
{
Blocks.Add(image.Blocks[point]);
}
}
}
}
/// <summary> /// Calculates vector between two blocks. /// </summary> /// <param name="block"></param> /// <returns></returns> public Vector GetVector(PixelBlock block) => new Vector(Position, block.Position);
/// <summary>
/// Cots function for calculating mean squared error.
/// </summary>
/// <param name="block"></param>
/// <returns></returns>
public double BlockDistortion(PixelBlock block) => Pixels.Select((p, i) => new { p, i }).Sum(pi =>
{
var diff = pi.p - block._pixels[pi.i];
return(diff * diff);
}) / Pixels.Count;
public bool IsCenterBlock(PixelBlock block) => CenterBlock.Equals(block);
protected Diamond(PixelBlock referentBlock, PixelBlock centerBlock)
{
ReferentBlock = referentBlock;
CenterBlock = centerBlock;
}
