Laplacian Pyramid Toolbox: SNR(in, est) - File Exchange

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Laplacian Pyramid Toolbox

SNR(in, est)
filtdn(x, f, dim, extmod, shi... FILTDN Filter and downsample (by 2) along a dimension
imageshow(im, range) Show image with proper scalling
lp2vec(y) LP2VEC Convert the output of the LP into a vector form
lpd(x, pfilt, nlev) LPD Multi-level Laplacian pyramid decomposition
lpdec1(x, h, g, extmod) LPDEC1 One-level Laplacian pyramid decomposition
lpr(y, pfilt) LPR Multi-level Laplacian pyramid reconstruction
lpr_old(y, pfilt) LPR_OLD Multi-level Laplacian pyramid reconstruction using the old method
lprec1(c, d, h, g, extmod) LPREC1 One-level Laplacian pyramid reconstruction
lprec1_old(c, d, h, g, extmod) LPREC1_OLD Laplacian pyramid reconstruction using the old method
pfilters(fname) PFILTERS Generate filters for the Laplacian pyramid
upfilt(x, f, dim, extmod, shi... UPFILT Upsample (by 2) and filter along a dimension
vec2lp(c, s) VEC2LP Convert the vector output back to the LP cell array form
lpdemo.m
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from Laplacian Pyramid Toolbox by Minh Do
Matlab toolbox that implements the Laplacian pyramid (LP) decomposition and a new pseudo-inverse rec

SNR(in, est)

function r = SNR(in, est)
% To find SNR between input (in) and estimate (est) in decibels (dB).
%
% Reference: Vetterli & Kovacevic, "Wavelets and Subband Coding", p. 372

error = in - est;

r = 10 * log10(var(in(:), 1) / mean(error(:).^2));

Highlights from Laplacian Pyramid Toolbox

Highlights from
Laplacian Pyramid Toolbox