/// <summary>
/// convolves the _scale matrix with _bitmap
/// INVOKE IN "USING"
/// </summary>
/// <returns>the result of the convolution</returns>
private Bitmap convolveBitmap()
{
Bitmap toReturn = new Bitmap(_bitmap);
using (Bitmap copy = new Bitmap(_bitmap))
{
foreach (int x in Enumerable.Range(0, _bitmap.Width - 1))
{
foreach (int y in Enumerable.Range(0, _bitmap.Height - 1))
{
BigColor accum = new BigColor();
if (x > 0 && y > 0)
{
accum += new BigColor(copy.GetPixel(x - 1, y - 1)) * _scale[0, 0];
accum += new BigColor(copy.GetPixel(x, y - 1)) * _scale[1, 0];
accum += new BigColor(copy.GetPixel(x + 1, y - 1)) * _scale[2, 0];
accum += new BigColor(copy.GetPixel(x - 1, y)) * _scale[0, 1];
accum += new BigColor(copy.GetPixel(x, y)) * _scale[1, 1];
accum += new BigColor(copy.GetPixel(x + 1, y)) * _scale[2, 1];
accum += new BigColor(copy.GetPixel(x - 1, y + 1)) * _scale[0, 2];
accum += new BigColor(copy.GetPixel(x, y + 1)) * _scale[1, 2];
accum += new BigColor(copy.GetPixel(x + 1, y + 1)) * _scale[2, 2];
toReturn.SetPixel(x, y, accum.toColor());
}
}
}
}
return(toReturn);
}
public BigBitmap(Bitmap from)
{
_width = from.Width;
_height = from.Height;
data = new BigColor[_width, _height];
foreach (int x in Enumerable.Range(0, _width - 1))
{
foreach (int y in Enumerable.Range(0, _height - 1))
{
data[x, y] = new BigColor(from.GetPixel(x, y));
}
}
}
