Download Shareware and Freeware Software for Windows, Linux, Macintosh, PDA

line Home  |  About Us  |  Link To Us  |  FAQ  |  Contact

Serving Software Downloads in 976 Categories, Downloaded 29.882.740 Times

PDL::Transform 2.4.3

  Date Added: November 05, 2010  |  Visits: 867


Report Broken Link
Printer Friendly Version

Product Homepage
Download (85 downloads)

PDL::Transform is a Perl module that coordinate transforms, image warping, and N-D functions. SYNOPSIS use PDL::Transform; my $t = new PDL::Transform:: ( ) $out = $t->apply($in) # Apply transform to some N-vectors (Transform method) $out = $in->apply($t) # Apply transform to some N-vectors (PDL method) $im1 = $t->map($im); # Transform image coordinates (Transform method) $im1 = $im->map($t); # Transform image coordinates (PDL method) $t2 = $t->compose($t1); # compose two transforms $t2 = $t x $t1; # compose two transforms (by analogy to matrix mult.) $t3 = $t2->inverse(); # invert a transform $t3 = !$t2; # invert a transform (by analogy to logical "not") PDL::Transform is a convenient way to represent coordinate transformations and resample images. It embodies functions mapping R^N -> R^M, both with and without inverses. Provision exists for parametrizing functions, and for composing them. You can use this part of the Transform object to keep track of arbitrary functions mapping R^N -> R^M with or without inverses. The simplest way to use a Transform object is to transform vector data between coordinate systems. The apply method accepts a PDL whose 0th dimension is coordinate index (all other dimensions are threaded over) and transforms the vectors into the new coordinate system. Transform also includes image resampling, via the map method. You define a coordinate transform using a Transform object, then use it to remap an image PDL. The output is a remapped, resampled image. You can define and compose several transformations, then apply them all at once to an image. The image is interpolated only once, when all the composed transformations are applied. In keeping with standard practice, but somewhat counterintuitively, the map engine uses the inverse transform to map coordinates FROM the destination dataspace (or image plane) TO the source dataspace; hence PDL::Transform keeps track of both the forward and inverse transform. For terseness and convenience, most of the constructors are exported into the current package with the name t_ , so the following (for example) are synonyms: $t = new PDL::Transform::Radial(); # Long way $t = t_radial(); # Short way Several math operators are overloaded, so that you can compose and invert functions with expression syntax instead of method syntax (see below)..

Requirements: No special requirements
Platforms: Linux
Keyword: Coordinate Image Image Warping Libraries Method Pdl Pdltransform Perl Module Programming Transform Transforms
Users rating: 0/10

License: Freeware Size: 2.1 MB
More Reviews or Write Review

Libraries  -  PDL::Ufunc 2.4.3
PDL::Ufunc Perl module contains primitive ufunc operations for pdl. This module provides some primitive and useful functions defined using PDL::PP based on functionality of what are sometimes called ufuncs (for example NumPY and Mathematica talk...
2.1 MB  
Libraries  -  PDL::NiceSlice 2.4.3
PDL::NiceSlice Perl module contains a nicer slicing syntax for PDL. SYNOPSYS use PDL::NiceSlice; $a(1:4) .= 2; # concise syntax for ranges print $b((0),1:$end); # use variables in the slice expression $a->xchg(0,1)->(($pos-1)) .= 0; #...
2.1 MB  
Libraries  -  PDL::Indexing 2.4.3
PDL::Indexing Perl module contains a tutorial on how to index piddles. This manpage should serve as a first tutorial on the indexing and threading features of PDL. This manpage is still in alpha development and not yet complete. "Meta"...
2.1 MB  
Libraries  -  PDL::MatrixOps 2.4.3
PDL::MatrixOps Perl module contains some useful Matrix operations. SYNOPSIS $inv = $a->inv; $det = $a->det; ($lu,$perm,$par) = $a->lu_decomp; $x = lu_backsub($lu,$perm,$b); # solve $a x $x = $b PDL::MatrixOps is PDLs built-in matrix...
2.1 MB  
Libraries  -  PDL::Primitive 2.4.3
PDL::Primitive Perl module contains primitive operations for pdl. This module provides some primitive and useful functions defined using PDL::PP and able to use the new indexing tricks. See PDL::Indexing for how to use indices creatively. For...
2.1 MB  
Libraries  -  GO::View 0.72
GO::View is a Perl module that creates a gif or png image for visualizing the GO DAG. This perl module generates a graphic that displays the parent and child relationships of a selected GO term. It also provides the visualization for the...
870.4 KB  
Libraries  -  PDL::Image2D 2.4.3
PDL::Image2D is a Perl module that contains miscellaneous 2D image processing functions. For large kernels, using a FFT routine, such as fftconvolve() in PDL::FFT, will be quicker. $new = conv2d $old, $kernel, {OPTIONS} $smoothed = conv2d...
2.1 MB  
Libraries  -  GD::Image::CopyIFS 0.25
GD::Image::CopyIFS is a Perl module for fractal-based image copying and resizing. SYNOPSIS # zoom in on an area of an image use GD::Image::CopyIFS; my $width = 64; my $height = 60; my $scale = 4; my $neww = $scale * $width; my $newh =...
21.5 KB  
Libraries  -  Image::ExifTool::Location 0.0.1
Image::ExifTool::Location is a Perl module with easy setting, getting of an images location information. SYNOPSIS use Image::ExifTool; use Image::ExifTool::Location; my $exif = Image::ExifTool->new(); # Extract info from existing image...
12.29 KB  
Libraries  -  Image::PBMlib 1.05
Image::PBMlib Perl module contains helper functions for PBM/PGM/PPM image file formats. SYNOPSIS use Image::PBMlib; ... open(PPM, "< image.ppm")... my $ref = readppmheader(*PPM); my @pixels = readpixels_raw(*PPM, $$ref{type},...
6.14 KB  
Programming  -  FLEX-db Digital Asset Manager 3.0.9
FLEX-db - an enterprise Digital Asset Manager (DAM). It ingests and links metadata with files, creates thumbnails, and processes files using business rules. FLEX-db has a JSP client, Java app server for file input and output and an EJB metadata...
21.57 MB  
Programming  -  Libicom 0.9.0
The libicom library is a character based dynamicly linked library for Linux. It is used to remotely control the Icom IC-R8500 wide band receiver via an RS232 link. All call and return parameters to the control functions are character string based....
20.48 KB  
Programming  -  dotdesktop 0.3
Dotdesktop library provides ability to parse desktop entry file and access the information in a convenient way. Desktop entry file format is defined by, it is used to describe information about an application such as the name and...
327.68 KB  
Programming  -  Cedalion for Linux 0.2.6
Cedalion is a programming language that allows its users to add new abstractions and define (and use) internal DSLs. Its innovation is in the fact that it uses projectional editing to allow the new abstractions to have no syntactic limitations.
471.04 KB  
Programming  -  libyasl 0.2
Libyasl is a C++ class library to easily realize TCP/UDP/Multicast clientsand servers in IPv4 and IPv6 environments under GNU/Linux systems.
143.36 KB  
Libraries  -  wolfSSL 3.11.0
The wolfSSL embedded SSL/TLS library is a lightweight SSL library written in ANSI standard C and targeted for embedded and RTOS environments - primarily because of its small size, speed, and feature set. It is commonly used in standard operating...
2.73 MB  
Libraries  -  EuGTK 4.8.9
Makes it easy to develop good- looking, fast, cross-platform programs that run on Linux, OS X, and Windows. Euphoria is a very fast interpreted/compiled language with straight-forward syntax. EuGTK allows programming in a clean, object-oriented...
10.68 MB  
Libraries  -  Linux User Group Library Manager 1.0
The LUG Library Manager is a project to help Linux User Groups start their own library. A LUG library is helpful to the community at large because it increases access to information, and gives everyone the opportunity to become more knowledgeable.
5.35 KB  
Libraries  -  Module::MakefilePL::Parse 0.12
Module::MakefilePL::Parse is a Perl module to parse required modules from Makefile.PL. SYNOPSIS use Module::MakefilePL::Parse; open $fh, Makefile.PL; $parser = Module::MakefilePL::Parse->new( join("", ) ); $info = $parser->required;...
8.19 KB  
Libraries  -  sqlpp 0.06
sqlpp Perl package is a SQL preprocessor. sqlpp is a conventional cpp-alike preprocessor taught to understand SQL ( PgSQL, in particular) syntax specificities. In addition to the standard #define/#ifdef/#else/#endif cohort, provides also...
10.24 KB