NormMax: Normalize dictionary atoms using l_{Inf} norm

In GSCAD: Implementing GSCAD Method for Image Denoising and Inpainting

Description

Remove zero columns of D. Then let D=(D_1,...,D_p). The normalization is done by

D_ik=D_ik/max_k D_ik, for i=1,...,p.

For any D_i, and D_j, if Cor(D_i,D_j)> cor_bnd, one of D_i and D_j is eliminated.

Usage

NormMax(D, cor_bnd = 0.95)

Arguments

D	The dictionary to be normalized.
cor_bnd	An upper bound of the correlation between atoms.

Value

The nomalized dictionary.

Examples

D=matrix(rnorm(50),nrow=5)
D=NormMax(D)

GSCAD documentation built on Oct. 6, 2017, 5:04 p.m.