halftoner::VGexp Class Reference

#include <VGexp.h>

Inheritance diagram for halftoner::VGexp:

[legend]Collaboration diagram for halftoner::VGexp:

Detailed Description

Class VGexp implements my attempt to improve the second technique by the pair Velho-Gomes..

Definition at line 41 of file VGexp.h.

Implemented method from class Halftoner

Image * halftone (const Image &source, const HalftonerSpec *spec) throw (std::invalid_argument)
Halftones the given image according to the given specifications.

halftoner::VGexp::VGexp ( ) throw ()

Constructor.

Definition at line 40 of file VGexp.cxx.

halftoner::VGexp::~VGexp ( )

Destructor.

Definition at line 50 of file VGexp.cxx.

Image * halftoner::VGexp::halftone ( const Image & source,

const HalftonerSpec * spec

) throw (std::invalid_argument) [virtual]

Halftones the given image according to the given specifications.

Parameters:

source the source image.

spec the specifications of the algorithm.

Returns :
the halftoned image, which must be manually deleted.
Exceptions:

std::invalid_argument if the image is not square.

std::invalid_argument if the dimension of the image is not a power of 2 greater than or equal to 32 and less than or equal to 512.

Todo:
make this better.

Implements halftoner::Halftoner.
Definition at line 60 of file VGexp.cxx.
References halftoner::VGSpec::getClusterSize(), halftoner::VGexpSpec::getErr1(), halftoner::VGexpSpec::getErr2(), halftoner::VGexpSpec::getErr3(), halftoner::VGSpec::getMnemonic(), and halftoner::Image::setColorAt().

The documentation for this class was generated from the following files:

Generated on Sat Sep 7 16:37:41 2002 for Halftoning Library by

1.2.17