public IImageIterator <T> Offset(int steps)
{
ImageColumnIterator <T> result = this;
result.Advance(steps);
return(result);
}
public int Difference(ImageColumnIterator <T> rhs)
{
if (this.image == rhs.image &&
this.column == rhs.column)
{
return(this.row - rhs.row);
}
throw new ArgumentException();
}
public int Difference(IImageIterator <T> obj)
{
if (obj is ImageColumnIterator <T> )
{
ImageColumnIterator <T> rhs = (ImageColumnIterator <T>)obj;
return(Difference(rhs));
}
throw new ArgumentException();
}
public override bool Equals(object obj)
{
if (obj is ImageColumnIterator <T> )
{
ImageColumnIterator <T> rhs = (ImageColumnIterator <T>)obj;
return(Equals(rhs));
}
return(false);
}
/// <summary>
/// Performs a one dimensional convolution in the y direction
/// </summary>
/// <param name="source"></param>
/// <param name="target"></param>
/// <param name="kernel"></param>
private static void SeparableConvolveY(IImage <double> source, IImage <double> target, Kernel1D kernel)
{
Debug.Assert(kernel.Left <= 0);
Debug.Assert(kernel.Right >= 0);
int w = source.Width;
int h = source.Height;
Debug.Assert(h >= kernel.Right - kernel.Left + 1, "Kernel cannot be longer than line");
for (int x = 0; x < w; ++x)
{
ImageColumnIterator <double> cs = source.GetColumnIterator(x, 0);
ImageColumnIterator <double> csEnd = source.GetColumnIterator(x, source.Height);
ImageColumnIterator <double> ct = target.GetColumnIterator(x);
ConvolveLine(cs, csEnd, ct, kernel);
}
}
public bool Equals(ImageColumnIterator <T> rhs)
{
return(image == rhs.image && row == rhs.row && column == rhs.column);
}
