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Special Forums News, Links, Events and Announcements UNIX and Linux RSS News Six Color Scanning Post 302208137 by Linux Bot on Monday 23rd of June 2008 05:20:05 AM
Old 06-23-2008
Six Color Scanning

HPL-2008-68 Six Color Scanning - Hunter, Andrew; DiCarlo, Jeffrey; Pollard, Stephen
Keyword(s): scanner, 6-color, color-accuracy, illumination, CCFL, phosphors, CCD, regression, color correction
Abstract: Scanner color accuracy is of growing importance as more and more people want to scan color photographs. Traditional three color scanners can suffer from color reproduction errors due to the significant mismatch between their spectral sensitivities and those of the human visual system. In this paper ...
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Color::Library::Color(3pm)				User Contributed Perl Documentation				Color::Library::Color(3pm)

NAME
Color::Library::Color - Color entry for a Color::Library color dictionary METHODS
$id = $color->id Returns the id of the color A color id is in the format of <dictionary_id:color_name>, e.g. svg:aliceblue x11:bisque2 nbs-iscc-f:chromeyellow.66 vaccc:darkspringyellow $name = $color->name Returns the name of the color, e.g. aliceblue bisque2 chromeyellow darkspringyellow $title = $color->title Returns the title of the color, e.g. aliceblue bisque2 chrome yellow Dark Spring-Yellow $dictionary = $color->dictionary Returns the Color::Library::Dictionary object that the color belongs to $hex = $color->hex Returns the hex value of the color, e.g. ff08ff eed5b7 eaa221 669900 Note that $hex does NOT include the leading #, for that use $color->html, $color->css, or $color->svg $html = $color->html $css = $color->css $svg = $color->svg Returns the hex value of the color with a leading #, suitable for use in HTML, CSS, or SVG documents, e.g. #ff08ff #eed5b7 #eaa221 #669900 $value = $color->value Returns the numeric value of the color, e.g. 15792383 15652279 15376929 6723840 ($r, $g, $b) = $color->rgb Returns r, g, and b values of the color as a 3 element list (list context), e.g. (240, 248, 255) $rgb = $color->rgb Returns r, g, and b values of the color in a 3 element array (scalar context), e.g. [ 240, 248, 255 ] $color = Color::Library::Color->new( id => $id, name => $name, title => $title, value => $value ) $color = Color::Library::Color->new( { id => $id, name => $name, title => $title, value => $value } ) $color = Color::Library::Color->new( [[ $id, $name, $title, $rgb, $hex, $value ]] ) Returns a new Color::Library::Color object representing the specified color You probably don't want/need to call this yourself FUNCTIONS $hex = Color::Library::Color::rgb2hex( $rgb ) $hex = Color::Library::Color::rgb2hex( $r, $g, $b ) Converts an rgb value to its hex representation $value = Color::Library::Color::rgb2value( $rgb ) $value = Color::Library::Color::rgb2value( $r, $g, $b ) Converts an rgb value to its numeric representation $rgb = Color::Library::Color::value2rgb( $value ) ($r, $g, $b) = Color::Library::Color::value2rgb( $value ) Converts a numeric color value to its rgb representation ($r, $g, $b) = Color::Library::Color::parse_rgb_color( $hex ) ($r, $g, $b) = Color::Library::Color::parse_rgb_color( $value ) Makes a best effort to convert a hex or numeric color value to its rgb representation perl v5.14.2 2011-12-07 Color::Library::Color(3pm)
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