private void UpdateSize()
{
var oldRows = _pixels.GetLength(0);
var oldColumns = _pixels.GetLength(1);
var newPixels = new Pixel[_rows, _columns];
for (int i = 0; i < _rows; ++i)
{
for (int j = 0; j < _columns; ++j)
{
if (i < oldRows && j < oldColumns)
{
newPixels[i, j] = _pixels[i, j];
}
else
{
newPixels[i, j] = new Pixel();
}
}
}
_pixels = newPixels;
Pixels = _pixels.Cast <Pixel>().ToArray();
}
public bool IsPresenceDetected()
{
var redPixels = _pixels.Cast <Pixel>().Count(IsRedPixel);
var isPresenceDetected = redPixels > 350;
//Console.WriteLine(isPresenceDetected ? "Presence detected, Number of red pixels: " + redPixels : "No presence detected, Number of red pixels: " + redPixels);
Console.WriteLine(isPresenceDetected ? "Presence detected" : "No presence detected");
return(isPresenceDetected);
}
protected override Pixel ProcessMatrix(Pixel[,] matrix, int height, int width)
{
Pixel[] flatMatrix = matrix.Cast <Pixel>().ToArray();
int[] reds = flatMatrix.Select(pixel => pixel.Red).ToArray();
int[] greens = flatMatrix.Select(pixel => pixel.Green).ToArray();
int[] blues = flatMatrix.Select(pixel => pixel.Blue).ToArray();
Array.Sort(reds);
Array.Sort(greens);
Array.Sort(blues);
int center = height * width / 2;
return(new Pixel(reds[center], greens[center], blues[center]));
}
private void Clear()
{
var newPixels = new Pixel[_rows, _columns];
for (int i = 0; i < _rows; ++i)
{
for (int j = 0; j < _columns; ++j)
{
newPixels[i, j] = new Pixel();
}
}
_pixels = newPixels;
Pixels = _pixels.Cast <Pixel>().ToArray();
}