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lib/Color/TupleEncode/2Way.pm  view on Meta::CPAN

You can set the minimum value of the tuple component at which saturation begins to change. Use C<rmin> option,

  $convert->set_options(-saturation=>{min=>0.8,max=>0.2,rmin=>1})

In this example, saturation will be C<0.8> at C<r E<lt>= 1>, will start decreasing at C<r = 1> towards C<0.2> at C<r = INF>.

If C<rmin> is set and C<power = 0>, then saturation will be C<min> for C<r E<lt>= rmin> and C<max> for C<r E<gt> rmin>.

=head2 Value

The value is calculated using the same formula as for saturation. 

By setting different C<rmin> values for saturation and value components, you can control the range of C<r> over which the encoding acts. For example, 

  $convert->set_options(-saturation=>{rmin=>0},-value=>{rmin=>1})

will result in saturation changing for C<r E<gt> 0> and value only for
C<r E<gt> 1>. For C<r E<lt>= 1>, value will be at its C<min> setting.

=head1 EXPORT