//this helper function returns a new PixImage with pixels on the edges reflected across the axis
//so that each pixel in the original image has 9 neighbors (including itself)
private PixImage GetReflection()
{
var newMatrix = new PixImage(Width + 2, Height + 2);
for (int x = 1; x < newMatrix.Width - 1; x++)
{
for (int y = 1; y < newMatrix.Height - 1; y++)
{
newMatrix.setPixel(x, y, this.getRed(x - 1, y - 1), this.getGreen(x - 1, y - 1), this.getBlue(x - 1, y - 1));
}
}
for (int x = 0; x < newMatrix.Width; x++)
{
for (int y = 0; y < newMatrix.Height; y++)
{
int a = x;
int b = y;
short red = 0;
if (x == 0)
{
a = 1;
}
if (y == 0)
{
b = 1;
}
if (x == newMatrix.Width - 1)
{
a = newMatrix.Width - 2;
}
if (y == newMatrix.Height - 1)
{
b = newMatrix.Height - 2;
}
red = (short)newMatrix.getRed(a, b);
//Console.WriteLine("getting a: {0}, b: {1}, for x: {2}, y: {3} which is: {4}", a, b, x, y, red);
newMatrix.setPixel(x, y, red, red, red);
}
}
//Console.WriteLine(newMatrix);
return(newMatrix);
}
/// <summary>
/// equals() checks whether two images are the same, i.e. have the same
/// dimensions and pixels.
/// </summary>
/// <param name="image"> a PixImage to compare with "this" PixImage. </param>
/// <returns> true if the specified PixImage is identical to "this" PixImage. </returns>
public virtual bool Equals(PixImage image)
{
int width = Width;
int height = Height;
if (image == null || width != image.Width || height != image.Height)
{
return(false);
}
for (int x = 0; x < width; x++)
{
for (int y = 0; y < height; y++)
{
if (!(getRed(x, y) == image.getRed(x, y) && getGreen(x, y) == image.getGreen(x, y) && getBlue(x, y) == image.getBlue(x, y)))
{
return(false);
}
}
}
return(true);
}