contrib/brl/bseg/brip/brip_filter_bank.h File Reference

A set of filter operations based on Gaussian derivatives. More...

Go to the source code of this file.

Classes
class	brip_filter_bank
Functions
vcl_ostream &	operator<< (vcl_ostream &s, brip_filter_bank const &r)

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Detailed Description

A set of filter operations based on Gaussian derivatives.

Author:

J.L. Mundy Provides a set of 2nd derivative filter responses at each pixel over scale and orientation. The scale values are spaced at harmonic intervals across the range. That is, the scale ratio is the nth root of the scale range. The input image is downsampled to form the scale pyramid. The anisotropic (in general) 2nd derivative filter is applied with the same max and min Gaussian standard deviations, lambda0, and lambda1, at each level of the scale pyramid. At each level a search over orientations is made and the maximum response is retained in the filter response output. If the operator is isotropic, i.e., lambda0 == lambda1, no search over orientations is carried out.

    Modifications
    none
   // 

Definition in file brip_filter_bank.h.

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Function Documentation

vcl_ostream& operator<<	(	vcl_ostream &	s,
		brip_filter_bank const &	r
	)

Definition at line 150 of file brip_filter_bank.cxx.