public float[,] Itegralize()
{
var img = new LockBitmap(_image);
img.LockBits();
var result = new float[img.Width, img.Height];
for (var i = 0; i < img.Width; i++)
{
for (var j = 0; j < img.Height; j++)
{
result[i, j] = img.GetPixel(i, j).GetBrightness();
if (j > 0)
{
result[i, j] += result[i, j - 1];
}
if (i > 0)
{
result[i, j] += result[i - 1, j];
}
if (i > 0 && j > 0)
{
result[i, j] -= result[i - 1, j - 1];
}
}
}
return result;
}
public Bitmap ApplyFilter(Bitmap image, IFilterParameters filterParameters)
{
matrixFilterParameters = filterParameters as MatrixFilterParameters;
if (matrixFilterParameters == null)
{
throw new ArgumentException();
}
var destImage = new Bitmap(image);
resultImage = new LockBitmap(destImage);
resultImage.LockBits();
sourceImage = new LockBitmap(image);
sourceImage.LockBits();
matrixLength = Convert.ToInt32(Math.Sqrt(matrixFilterParameters.Matrix.Length));
Parallel.For(0, sourceImage.Width, x =>
{
for (int y = 0; y < sourceImage.Height; y++)
{
Wrap(x, y);
}
});
resultImage.UnlockBits();
sourceImage.UnlockBits();
return destImage;
}
public Bitmap ApplyFilter(Bitmap image, IFilterParameters filterParameters)
{
var param = filterParameters as GausianFilterParameters;
if (param == null)
{
throw new ArgumentException("Parameters object must implement IFilterParameters");
}
var windowSize = (int)Math.Ceiling(param.Sigma * 3);
var window = InitializeWindow(param.Sigma);
var img = new LockBitmap(image);
var dest = new Bitmap(image);
img.LockBits();
var destImage = new LockBitmap(dest);
destImage.LockBits();
Parallel.For(0, img.Width, x =>
{
Color[] tmp = new Color[img.Height];
for (var y = 0; y < img.Height; y++)
{
var sum = 0.0;
var r = 0.0;
var g = 0.0;
var b = 0.0;
for (var i = 0; i < window.Length; i++)
{
var l = x + i - windowSize;
if (l >= 0 && l < img.Width)
{
var sourceColor = img.GetPixel(l, y);
r += sourceColor.R * window[i];
g += sourceColor.G * window[i];
b += sourceColor.B * window[i];
sum += window[i];
}
}
tmp[y] = Color.FromArgb((r / sum).GetValidColorComponent(), (g / sum).GetValidColorComponent(),
(b / sum).GetValidColorComponent());
}
for (var i = 0; i < img.Height; i++)
{
destImage.SetPixel(x, i, tmp[i]);
}
});
Parallel.For(0, img.Height, y =>
{
Color[] tmp = new Color[img.Width];
for (var x = 0; x < img.Width; x++)
{
var sum = 0.0;
var r = 0.0;
var g = 0.0;
var b = 0.0;
for (var i = 0; i < window.Length; i++)
{
var l = y + i - windowSize;
if (l >= 0 && l < img.Height)
{
var sourceColor = destImage.GetPixel(x, l);
r += sourceColor.R * window[i];
g += sourceColor.G * window[i];
b += sourceColor.B * window[i];
sum += window[i];
}
}
tmp[x] = Color.FromArgb((r / sum).GetValidColorComponent(), (g / sum).GetValidColorComponent(),
(b / sum).GetValidColorComponent());
}
for (var i = 0; i < img.Width; i++)
{
img.SetPixel(i, y, tmp[i]);
}
});
img.UnlockBits();
destImage.UnlockBits();
return image;
}
