public class BasicDerivativeKernels extends Object
Modifier and Type  Field and Description 

static FConvolution 
DX_KERNEL
kernel approximating the first derivative of a lowsigma gaussian in the xdirection [0.5, 0, 0.5].

static FConvolution 
DXX_KERNEL
kernel approximating the second derivative of a low sigma gaussian in the xdirection [1, 2, 1].

static FConvolution 
DXXXX_KERNEL
kernel approximating the fourth derivative of a low sigma gaussian in the xdirection [1,4,6,4,1]^T
Useful for giving an estimate of the fourth derivative in y of any given point

static FConvolution 
DXXYY_KERNEL
kernel approximating the second derivative of a low sigma gaussian in the xdirection and ydirection [[1,2,1],[2,4,2],[1,2,1]] .

static FConvolution 
DXY_KERNEL
kernel approximating the first derivative of a low sigma gaussian in the xdirection and ydirection [[0.25, 0, 0.25], [0, 0, 0], [0.25, 0, 0.25]] .

static FConvolution 
DY_KERNEL
kernel approximating the first derivative of a lowsigma gaussian in the ydirection [0.5, 0, 0.5]'.

static FConvolution 
DYY_KERNEL
kernel approximating the second derivative of a low sigma gaussian in the ydirection [1, 2, 1]'.

static FConvolution 
DYYYY_KERNEL
kernel approximating the fourth derivative of a low sigma gaussian in the ydirection [1,4,6,4,1]^T
Useful for giving an estimate of the fourth derivative in y of any given point

Constructor and Description 

BasicDerivativeKernels() 
public static final FConvolution DX_KERNEL
public static final FConvolution DY_KERNEL
public static final FConvolution DXX_KERNEL
public static final FConvolution DXY_KERNEL
public static final FConvolution DYY_KERNEL
public static final FConvolution DXXXX_KERNEL
public static final FConvolution DXXYY_KERNEL
public static final FConvolution DYYYY_KERNEL
public BasicDerivativeKernels()