Wavelet Scalar Quantization

For fingerprint images WSQ (Wavelet Scalar Quantization) is superior to other lossy compression methods, such as JPEG, and was chosen by FBI (U.S. Federal Bureau of Investigation) as the fingerprint image compression standard. WSQ is a lossy compression method that is well-suited for preserving... Platforms: Windows

NIST (ANSI/NIST-ITL 1-2000) library. Version 1.0.Cognaxon NIST (ANSI/NIST-ITL 1-2000) library reads and extracts NIST (ANSI/NIST-ITL 1-2000) file format. The advantage of NIST files is the ability to contain multiple images and other types of data about the person in one single file, which... Platforms: Windows

Scalar::Defer is a Perl module to calculate values on demand. SYNOPSIS use Scalar::Defer; # exports defer and lazy my ($x, $y); my $dv = defer { ++$x }; # a deferred value (not memoized) my $lv = lazy { ++$y }; # a lazy value (memoized) print "$dv $dv $dv"; # 1 2 3 print "$lv $lv $lv";... Platforms: *nix

Tie::Scalar::Sticky is a Perl module with block assignments to scalars. SYNOPSIS use strict; use Tie::Scalar::Sticky; tie my $sticky, Tie::Scalar::Sticky; $sticky = 42; $sticky = ; # still 42 $sticky = undef; # still 42 $sticky = 0; # now its zero tie my $sticky, Tie::Scalar::Sticky... Platforms: *nix

Scalar::MultiValue is a Perl module to create a SCALAR with multiple values. This module create a SCALAR with multiple values, where this values can be randomic or can change by a defined period. USAGE: With a period of 2: my $s = new Scalar::MultiValue( [qw(a b c d)] , 2 ) ; for(0..8)... Platforms: *nix

Scalar::Util is a selection of general-utility scalar subroutines. SYNOPSIS use Scalar::Util qw(blessed dualvar isweak readonly refaddr reftype tainted weaken isvstring looks_like_number set_prototype); Scalar::Util contains a selection of subroutines that people have expressed would be... Platforms: *nix

Scalar::Properties is a Perl module package that contains run-time properties on scalar variables. SYNOPSIS use Scalar::Properties; my $val = 0->true; if ($val && $val == 0) { print "yup, its true alright...n"; } my @text = ( hello world->greeting(1), forget it, hi... Platforms: *nix

Variable::Strongly::Typed::Scalar is Perl module for strongly typed scalar. SYNOPSIS This class is utilized by Variable::Strongly::Typed - you dont access this directly =head1 DESCRIPTION. Platforms: *nix

Scalar is an addictive cross-platform puzzle game written in C++ using SDL library. The goal of the game is to assemble the picture from pieces. Each picture is divided into pieces which are shuffled. You need to get each piece back to its original position. You accomplish that by swapping... Platforms: *nix

Scalar::Footnote is a Perl module that can attach hidden scalars to references. SYNOPSIS use Data::Dumper; use Scalar::Footnote; my $obj = Foo->new; # attach invisible footnote to $obj: $obj->Scalar::Footnote::set( my_key => my footnote ); print Dumper( $obj ); # get it back: my... Platforms: *nix

This function is for training a codebook for vector quantization. The data set is split to two clusters, first, and the mean of each cluster is found (centroids). The disttance of each vector from these centroids is found and each vector is associated with a cluster. The mean of vectors of each... Platforms: Matlab

This article consists of a brief discussion of the energy density over time or frequency that is obtained with the wavelet transform. Also an efficient algorithm is suggested to calculate the continuous transform with the Morlet wavelet. The energy values of the Wavelet transform are compared... Platforms: Matlab

This toolbox is a fully object-oriented toolbox with a GUI for Bayesian Wavelet Networks. It is easy to use.The training method is used here is one of powerfull, off-line training algorithm, called Hybrid Markov Chain Monte Carlo- based Bayesian Approach.Also, You can easily add your own function... Platforms: Matlab

Wavelet based square image enlargemant (zooming in).Zooming is performed by employing the idwt2() MATLAB function, with a waveletfamily determined by 'wname'.The size and quality of the final zoomed image 'output_image' depends on Platforms: Matlab

This demo works on only the Approximate region of the Wavelet Transform Platforms: Matlab

The Scalar Field Gradient Model displays the gradient of a scalar field using a numerical approximation to the partial derivatives. This simple teaching model also shows how to display and model scalar and vector fields using EJS. The EJS Scalar Field Gradient Model was created using the Easy... Platforms: Mac

This allows you to have a scalar which has to stay within a certain margin of error. Your code will die (or execute what was passed in via the 'callback' subref) if the scalar's value goes outside this range. You tie a variable, and give it an initial value and a tolerance. Your code will die... Platforms: *nix

This collection of files is an extension of the wavelet software package originally written by Torrence and Compo (http://paos.colorado.edu/research/wavelets/software.html)The main functions are:1. contwt.m: (continuous wavelet transform). This is essentially Torrence and Compo's wavelet.m with a... Platforms: Matlab

This transformation is non-redundant, approximately shift-invariant and produces oriented filters in 2D and 3D. There is a m-file called 'example.m' which shows how one can use this package.For more information see the following paper:Hosseini, Vafadust : "Almost Perfect Reconstruction Filter... Platforms: Matlab

This function plots the result of wavedec2 matlab function in two different modes. The first one called 'tree' displays all approximations and details coefficients (horizontal, vertical, diagonal), the second one called 'square' displays the classical "squared" representation of a wavelet image... Platforms: Matlab