public static Image ToRegularImage(Image2D <double> image)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
return(ToRegularImage(image, image.Min(), image.Max()));
}
public static Image ToRegularImage(Image2D <ObjectBackgroundTerm> image)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
double min = image.Min(t => t.ObjectTerm - t.BackgroundTerm);
double max = image.Max(t => t.ObjectTerm - t.BackgroundTerm);
return(ToRegularImage(image, min, max));
}
public static Image ToRegularImage(Image2D <ObjectBackgroundTerm> image, double min, double max)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
if (max <= min)
{
throw new ArgumentException("Min should be less than max.");
}
double diff = max - min;
return(ToRegularImage(image, x => ZeroOneToRedBlue((MathHelper.Trunc(x.ObjectTerm - x.BackgroundTerm, min, max) - min) / diff)));
}
private static Image ToRegularImage <T>(Image2D <T> image, Func <T, Color> converter)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
if (converter == null)
{
throw new ArgumentNullException("converter");
}
Bitmap result = new Bitmap(image.Width, image.Height);
for (int i = 0; i < image.Width; ++i)
{
for (int j = 0; j < image.Height; ++j)
{
result.SetPixel(i, j, converter(image[i, j]));
}
}
return(result);
}
public static Image2D <Color> FromRegularImage(Bitmap image, double scaleCoeff)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
using (Bitmap scaledImage = new Bitmap(
image,
(int)Math.Round(image.Width * scaleCoeff),
(int)Math.Round(image.Height * scaleCoeff)))
{
Image2D <Color> result = new Image2D <Color>(scaledImage.Width, scaledImage.Height);
for (int x = 0; x < scaledImage.Width; ++x)
{
for (int y = 0; y < scaledImage.Height; ++y)
{
result[x, y] = scaledImage.GetPixel(x, y);
}
}
return(result);
}
}
public static Image ToRegularImage(Image2D <bool?> image)
{
return(ToRegularImage(image, x => x.HasValue ? (x.Value ? Color.Red : Color.Blue) : Color.Black));
}
public static void SaveToFile(Image2D <ObjectBackgroundTerm> image, string fileName)
{
ToRegularImage(image).Save(fileName);
}
public static void SaveToFile(Image2D <double> image, string fileName)
{
ToRegularImage(image).Save(fileName);
}
public static void SaveToFile(Image2D <double> image, double min, double max, string fileName)
{
ToRegularImage(image, min, max).Save(fileName);
}
public static Image ToRegularImage(Image2D <bool> image)
{
return(ToRegularImage(image, x => x ? Color.White : Color.Black));
}
public static Image ToRegularImage(Image2D <Color> image)
{
return(ToRegularImage(image, x => x));
}