surf
Interface GAUSS_Convolution

All Known Implementing Classes:
My_GAUSS_Convolution

public interface GAUSS_Convolution

Generic interface for a class that calculates the convolution of an image with a Gaussian Filter.

Author:
Alessandro Martini, Claudio Fantacci

Method Summary
 float makeConvolutionDxx(int x, int y, int filtersize)
          Computes the Gaussian second oder partial derivative in in x-direction and returns the value of the (x,y) point for a filter large as specified.
 float makeConvolutionDxy(int x, int y, int filtersize)
          Computes the Gaussian second oder partial derivative in in xy-direction and returns the value of the (x,y) point for a filter large as specified.
 float makeConvolutionDyy(int x, int y, int filtersize)
          Computes the Gaussian second oder partial derivative in in y-direction and returns the value of the (x,y) point for a filter large as specified.
 

Method Detail

makeConvolutionDxx

float makeConvolutionDxx(int x,
                         int y,
                         int filtersize)
Computes the Gaussian second oder partial derivative in in x-direction and returns the value of the (x,y) point for a filter large as specified.

Parameters:
x -
y -
filtersize -
Returns:
float Gauss Convolution value in the x-direction for the specified Interest Point.

makeConvolutionDxy

float makeConvolutionDxy(int x,
                         int y,
                         int filtersize)
Computes the Gaussian second oder partial derivative in in xy-direction and returns the value of the (x,y) point for a filter large as specified.

Parameters:
x -
y -
filtersize -
Returns:
float Gauss Convolution value in the xy-direction for the specified Interest Point.

makeConvolutionDyy

float makeConvolutionDyy(int x,
                         int y,
                         int filtersize)
Computes the Gaussian second oder partial derivative in in y-direction and returns the value of the (x,y) point for a filter large as specified.

Parameters:
x -
y -
filtersize -
Returns:
float Gauss Convolution value in the y-direction for the specified Interest Point.


processing library SURF by Claudio Fantacci, Alessandro Martini. (c) 2009