private void Fill2DArray(GaborFilterKernel fullKernel)
{
for (var i = 0; i < _kernelMatrix.Length; i++)
{
for (var j = 0; j < _kernelMatrix.Length; j++)
{
_kernelMatrix[i][j] = fullKernel[i - _definitionRange.Right, j - _definitionRange.Bottom];
}
}
}
/// <summary>
/// Initializes a new instance of the <see cref="GaborFilterKernelWithEnvelope"/> class.
/// </summary>
/// <param name="wavelength">The wavelength of the Gabor kernel.</param>
/// <param name="orientation">The angle of the Gabor kernel.</param>
/// <param name="envelopeWavelengthFactor">The side size of the definition range of the kernel.</param>
public GaborFilterKernelWithEnvelope(double wavelength, double orientation, int envelopeWavelengthFactor)
{
var fullKernel = new GaborFilterKernel(wavelength, orientation);
var sideSize = (int)(wavelength * envelopeWavelengthFactor);
// this is a quick fix dealing with even sized kernels.
if (sideSize % 2 == 0)
{
sideSize += 1;
}
var left = -(sideSize / 2);
_definitionRange = new Rectangle(left, left, sideSize, sideSize);
_kernelArrayXOffset = _definitionRange.Right - 1;
_kernelArrayYOffset = _definitionRange.Bottom - 1;
_kernelMatrix = CreateSquareMatrix(sideSize);
Fill2DArray(fullKernel);
Factor = GetFactor();
}
