toolbox_wavelets.m

来自「我找到的matlab的最新工具箱」· M 代码 · 共 25 行

% toolbox_wavelets - wavelets related functions.
%
%   Wavelet transform using lifting implementation (symmetric boundary condition):
%       - perform_lifting_transform / perform_lifting_transform_slow - 1D wavelet transform via lifting
%		(general interface)
%		- perform_lifting_transform_byname - string based interface.
%       - perform_79_transform - biorthogonal 7/9 1D wavelet transform
%       - perform_wavelet_transform_hyperbolic - multidimensional hyperbolic (i.e. fully tensorial) wavelet transform
%       - perform_wavelet_transform_isotropic - multidimensional isotropic wavelet transform
%	Other transforms:
%		- perform_haar_transform - a simple but very fast 1D haar transform.
%		- perform_pyramid_transform - Laplacian-like pyramidal transform.
%		- perform_pyramid_transform_do - Minh Do Pyramidal transform (much better).
%       - perform_atrou_transform - compute the "a trou" wavelet transform,  i.e. without subsampling
%		(try to use either RWT or CWP2 when available).
%	Interface function:
%       - perform_wavelet_transform - just a wrapper to call the correct wavelet transform of WAVELAB
%		- perform_steerable_transform - interface to Simoncelli Steerable transform.
%   Helpers functions:
%       - compute_quadrant_selection - compute the indice for selecting a given quadrant
%       - plot_wavelet - plot wavelet using Mallat's ordering.
%		- evaluate_nbr_bits_wavelets - compute the entropy of a wavelet transform.
%		- convert_wavelets2list - extract each sub-image.
%
%   Copyright (c) 2004 Gabriel Peyr