termcol: hsv method in Colour module

[sheet.git] / Shiar_Sheet / Colour.pm

diff --git a/Shiar_Sheet/Colour.pm b/Shiar_Sheet/Colour.pm
index cdac0b346066b204e70fa148001c959ab74de43b..cf22f3eac9726d4a6c86f10e66de932e0347f85a 100644 (file)
--- a/Shiar_Sheet/Colour.pm
+++ b/Shiar_Sheet/Colour.pm
@@ -4,7 +4,7 @@ use strict;
 use warnings;
 use List::Util qw( min max );
 
-our $VERSION = '1.03';
+our $VERSION = '1.04';
 
 # ITU-R recommendation 601 luma co-efficients
 our $kr = .299;
@@ -50,6 +50,12 @@ sub hue {
        return $hue;
 }
 
+sub hsv {
+       my ($rgb) = @_;
+       my $v = max(@{$rgb});
+       return $rgb->hue, abs(min(@{$rgb}) - $v), $v;
+}
+
 sub rgb24 {
        my $str = '';
        $str .= sprintf '%X', min($_ / 17 + .5, 15) for @{ $_[0] };