private static Image CreateNewImage(Image image, int fieldSize)
{
Stopwatch watch = new Stopwatch();
watch.Start();
var size = image.Size;
Image newImage = new Image(size.Width, size.Height);
var access = newImage.Planes[0].GetLinearAccess <byte>();
PixelHelper pixelHelper = new PixelHelper(image.Planes[0]);
for (int y = 0; y < size.Height; y++)
{
for (int x = 0; x < size.Width; x++)
{
access[x, y] = (byte)PixelsInNeighborhod(pixelHelper, x, y, fieldSize);
}
}
watch.Stop();
MessageBox.Show(watch.ElapsedMilliseconds.ToString());
return(newImage);
}
private static Image CreateNewImage(Image image, int[,] kernel)
{
var size = image.Size;
Image newImage = new Image(size.Width, size.Height);
var access = newImage.Planes[0].GetLinearAccess <byte>();
PixelHelper pixelHelper = new PixelHelper(image.Planes[0]);
for (int y = 0; y < size.Height; y++)
{
for (int x = 0; x < size.Width; x++)
{
access[x, y] = (byte)KernelOperation(pixelHelper, x, y, kernel);
}
}
return(newImage);
}
private static unsafe int PixelsInNeighborhod(PixelHelper pixelHelper, int x, int y, int fieldSize)
{
int pixelValueSum = 0;
int numberOfPixels = 0;
for (int kernelY = y - fieldSize; kernelY <= y + fieldSize; kernelY++)
{
var ypart = kernelY * pixelHelper.YInc + pixelHelper.PBase;
for (int kernelX = x - fieldSize; kernelX <= x + fieldSize; kernelX++)
{
if (IsInsideImage(pixelHelper.Size, kernelX, kernelY))
{
numberOfPixels++;
pixelValueSum += *(kernelX * pixelHelper.XInc + ypart);
}
}
}
return(pixelValueSum / numberOfPixels);
}
private static unsafe int KernelOperation(PixelHelper pixelHelper, int x, int y, int[,] kernel)
{
int valueSum = 0;
int firstDimension = 0;
int pixelsAround = (kernel.GetLength(0) - 1) / 2;
for (int kernelY = y - pixelsAround; kernelY <= y + pixelsAround; kernelY++)
{
var ypart = kernelY * pixelHelper.YInc + pixelHelper.PBase;
int secondDimension = 0;
for (int kernelX = x - pixelsAround; kernelX <= x + pixelsAround; kernelX++)
{
if (IsInsideImage(pixelHelper.Size, kernelX, kernelY))
{
var pixelValue = *(kernelX * pixelHelper.XInc + ypart);
valueSum += pixelValue * kernel[firstDimension, secondDimension];
}
secondDimension++;
}
firstDimension++;
}
return(valueSum / kernel.Length);
}
