man Graphics::ColorDeficiency () - Color Deficiency Simulation

NAME

Graphics::ColorDeficiency - Color Deficiency Simulation

SYNOPSIS

  use Graphics::ColorDeficiency;


  my $col = Graphics::ColorDeficiency->newRGB(0.5, 0.7, 1);


  my $col2 = $col->asProtanopia;


  print $col2->asHex;

DESCRIPTION

This module allows easy transformation of colors for color deficiency simulation. All the known and theorhetical color deficiencies are represented here, with the exception of 4-cone vision (tetrachromatism).

Each of the transformation methods returns a CWGraphics::ColorObject object, with the internal color values set. This can then be used to return the color in many different formats (see the CWGraphics::ColorObject manpage).

METHODS

The three dichromat methods return a CWGraphics::ColorObject object, simulated for the three dichromatic vision modes. The three anomalous trichromat methods return a CWGraphics::ColorObject object, simulated for the three anomalous trichromatic vision modes. The optional CW$amount agrument allows you to specify the severity of anomaly, ranging from 0 (trichromatic) to 1 (dichromatic). If not specified, it defaults to 0.5. Returns a CWGraphics::ColorObject object in Typical Monochromatic (Rod Monochromat) mode. Returns a CWGraphics::ColorObject object in Atypical Monochromatic (Cone Monochromat) mode. The amount specified in CW$amount can vary between 1 (trichromatic) and 0 (monochromatic). The default is 0.2 (four fifths gray). Clones the current object, returning a CWGraphics::ColorDeficiency object with the same color values as the current object. Returns a new CWGraphics::ColorDeficiency, consisting of the current color values, mixed with the values of the CW$color object. CW$amount specifies the amount of the new color to mix in, from 0 (which is equal to CW$self.Clone()), up to 1 (which is equal to CW$color.Clone()). The mix is a linear RGB interpolation. This method is used internally.

AUTHOR

Copyright (C) 2003 Cal Henderson <cal@iamcal.com>

SEE ALSO

Graphics::ColorObject

<http://www.iamcal.com/toys/colors/>