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Wavelab Toolbox >> Wavelab Toolbox > Interpolating Refinements and Wavelet Transforms > HRefine2d

HRefine2d

2-d Refinement based on Haar Pyramid

Calling Sequence

fine = HRefine2d(coarse,L)

Parameters

Inputs:

coarse:

2-d image at a coarse scale: length(coarse)=n

L :

integer >=1. number of generations to refine by

Outputs:

fine :

2-d image at a fine scale: size(fine) = 2^L * size(coarse)

Description

Trivial Refinement scheme is used to refine boxcar averages on a grid of n*n points, imputing averages on a finer grid of 2^L n * 2^L n points. Specifically, for L generations, each block in the parent is replaced by a 2*2 block in the child, all having the same value as in the parent.

See also

Authors

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