Free color me badd software for linux

Color::Scheme is a module used to generate pleasant color schemes.

This module is a Perl implementation of Color Schemes 2, a color scheme generator. Start by visitng the Color Schemes 2 web site and playing with the colors.

When you want to generate those schemes on the fly, begin using this modoule. The descriptions herein dont make too much sense without actually seeing the colorful results.

Henceforth, paragraphs in quotes denote documentation copied from Color Schemes 2.

"Important note: This tool doesnt use the standard HSV or HSB model (the same HSV/HSB values ie. in Photoshop describe different colors!). The color wheel used here differs from the RGB spectre used on computer screens, its more in accordance with the classical color theory.

This is also why some colors (especially shades of blue) make less bright shades than the basic colors of the RGB-model. In plus, the RGB-model uses red-green-blue as primary colors, but the red-yellow-blue combination is used here.

This deformation also causes incompatibility in color conversions from RGB-values. Therefore, the RGB input (eg. the HTML hex values like #F854A9) is not exact, the conversion is rough and sometimes may produce slightly different color."

Color::Fade provides a Perl extension for fading text colors.

Color::Fade uses mathematical formulas to take an input string of virtually any length, and virtually any number of colors, and assign an individual color to each character to fade between each of the input colors.

In other words, it makes your sentences look really pretty.

Methods

Fade $string among the colors in @colors, where $string is a string of length greater than zero, and @colors is an array of colors in six byte hexadecimal format, with or without the leading octothorpe. @colors must have at least two elements.

When called in array context, the method returns an array in which each element is of the format:

y

For each character, where xxxxxx is a hexadecimal color code and y is one character from the original string.

When called in scalar context, this array is joined before being returned.

SmartColorWell is a cross-platform open-source ColorWell class for REALbasic 4 or greater. The SmartColorWell control stores a color value and displays that color in a simulated BevelButton that when pressed allows the user to change the color using the operation systems standard color picker.

SmartColorWell is developed for and tested on Linux, Mac OS X, Mac OS 9 and Windows 98/2000/XP. SmartColorWell isnt really all that smart, but its pretty smart relative to other REALbasic ColorWell classes.

The SmartColorWell class is provided free for all to use. You are free to redistribute the source code. If you distribute it as a standalone class, please include this documentation with it. If you distribute source code containing SmartColorWell, you do not need to include this documentation. There is no need to credit me in your program for using SmartColorWell unless you just want to.

Using SmartColorWell:

First add the SmartColorWell class to your project by dragging the "SmartColorWell.rbo" file into your project window. To add a SmartColorWell to one of your project windows, add a canvas to the window and change the canvass Super property from "Canvas" to "SmartColorWell". (or simply drag the SmartColorWell class from your Project window and drop it in the window)

Color::Calc provides a module which implements simple calculations with RGB colors.
This can be used to create a full color scheme from a few colors.
There are three methods to use the calculation functions: You can create an object, import customised functions into your namespace, or you can access them as class methods.
The module accepts color values in the following formats:
- An arrayref pointing to an array with three elements in the range 0..255 corresponding to the red, green, and blue component.
- A list of three values in the range 0..255 corresponding to the red, green, and blue component where the first value does not have 3 or a multiple of 3 digits (e.g. (0128,128,128)).
- A string containing a hexadecimal RGB value like #RGB/#RRGGBB/#RRRGGGBBB/..., or RGB/RRGGBB/RRRGGGBBB/...
- A color name accepted by Graphics::ColorNames. The interpretation is controlled by the ColorScheme parameter.
- A Graphics::ColorObject reference.

True Color Picker is a PHP class that can be used to present a palette to let the user pick colors.

It displays an image with all the tones for the user to pick by clicking in an image point with the desired tone similar to Photoshop.

It uses AJAX to update the picker boxes without reloading the page.

Imager::Color is a Perl module with color handling for Imager.

SYNOPSIS

$color = Imager::Color->new($red, $green, $blue);
$color = Imager::Color->new($red, $green, $blue, $alpha);
$color = Imager::Color->new("#C0C0FF"); # html color specification

$color->set($red, $green, $blue);
$color->set($red, $green, $blue, $alpha);
$color->set("#C0C0FF"); # html color specification

($red, $green, $blue, $alpha) = $color->rgba();
@hsv = $color->hsv(); # not implemented but proposed

$color->info();

if ($color->equals(other=>$other_color)) {
...
}

This module handles creating color objects used by imager. The idea is that in the future this module will be able to handle colorspace calculations as well.

new

This creates a color object to pass to functions that need a color argument.

set

This changes an already defined color. Note that this does not affect any places where the color has been used previously.

rgba

This returns the rgba code of the color the object contains.

info

Calling info merely dumps the relevant colorcode to the log.

equals(other=>$other_color)
equals(other=>$other_color, ignore_alpha=>1)

Compares $self and color $other_color returning true if the color components are the same.

Compares all four channels unless ignore_alpha is set. If ignore_alpha is set only the first three channels are compared.

You can specify colors in several different ways, you can just supply simple values:
simple numeric parameters - if you supply 3 or 4 numeric arguments, you get a color made up of those RGB (and possibly A) components.

a six hex digit web color, either RRGGBB or #RRGGBB
an eight hex digit web color, either RRGGBBAA or #RRGGBBAA.
a 3 hex digit web color, #RGB - a value of F becomes 255.
a color name, from whichever of the gimp Named_Colors file or X rgb.txt is found first. The same as using the name keyword.

You can supply named parameters:

red, green and blue, optionally shortened to r, g and b. The color components in the range 0 to 255.

# all of the following are equivalent
my $c1 = Imager::Color->new(red=>100, blue=>255, green=>0);
my $c2 = Imager::Color->new(r=>100, b=>255, g=>0);
my $c3 = Imager::Color->new(r=>100, blue=>255, g=>0);
hue, saturation and value, optionally shortened to h, s and v, to specify a HSV color. 0 new(hue=>120, value=>1, saturation=>0.5);
web, which can specify a 6 or 3 hex digit web color, in any of the forms #RRGGBB, #RGB, RRGGBB or RGB.
my $c1 = Imager::Color->new(web=>#FFC0C0); # pale red
gray or grey which specifies a single channel, from 0 to 255.
# exactly the same
my $c1 = Imager::Color->new(gray=>128);
my $c1 = Imager::Color->new(grey=>128);
rgb which takes a 3 member arrayref, containing each of the red, green and blue values.
# the same
my $c1 = Imager::Color->new(rgb=>[255, 100, 0]);
my $c1 = Imager::Color->new(r=>255, g=>100, b=>0);
hsv which takes a 3 member arrayref, containting each of hue, saturation and value.
# the same
my $c1 = Imager::Color->new(hsv=>[120, 0.5, 1]);
my $c1 = Imager::Color->new(hue=>120, v=>1, s=>0.5);

gimp which specifies a color from a GIMP palette file. You can specify the filename of the palette file with the palette parameter, or let Imager::Color look in various places, typically "$HOME/gimp-1.x/palettes/Named_Colors" with and without the version number, and in /usr/share/gimp/palettes/. The palette file must have color names.

my $c1 = Imager::Color->new(gimp=>snow);
my $c1 = Imager::Color->new(gimp=>snow, palette=>testimg/test_gimp_pal);

xname which specifies a color from an X11 rgb.txt file. You can specify the filename of the rgb.txt file with the palette parameter, or let Imager::Color look in various places, typically /usr/lib/X11/rgb.txt.

my $c1 = Imager::Color->new(xname=>blue) # usually RGB(0, 0, 255)

builtin which specifies a color from the built-in color table in Imager::Color::Table. The colors in this module are the same as the default X11 rgb.txt file.

my $c1 = Imager::Color->new(builtin=>black) # always RGB(0, 0, 0)

name which specifies a name from either a GIMP palette, an X rgb.txt file or the built-in color table, whichever is found first.

channel0, channel1, etc, each of which specifies a single channel. These can be abbreviated to c0, c1 etc.

channels which takes an arrayref of the channel values.

Optionally you can add an alpha channel to a color with the alpha or a parameter.

These color specifications can be used for both constructing new colors with the new() method and modifying existing colors with the set() method.

Apache::BioChrome is an Apache handler for Image::BioChrome to colorize gif files based on information provided in the url.

SYNOPSIS

#httpd.conf
PerlTransHandler Apache::BioChrome

# anywhere you can configure a location
< Location /biochrome >
PerlSetVar biochrome_cache /tmp/biochrome
PerlSetVar biochrome_source /usr/www/images/biochrome
< /Location >

This module is designed to allow the automatic building of gif images that make up an interface by using the Image::BioChrome module to replace values in the global color table. It takes the color information from the URL and creates a copy of the gif file from the source directory in the location specified by the biochrome cache variable. This file is then returned by apache using the standard delivery method.

I developed this module because we produce lots of web sites where a high proportion of the site interface is common. But where images need to be in a different color for specific sites.
Once you have the handler setup as above you can call it in two different ways:
/biochrome/alpha_ff0000_0000ff/picure.gif

Will take the file picture.gif and do an alpha map replacement using the colors ff0000 and 0000ff as the two ends of the spectrum. The use of alpha maps should be familiar to anyone who uses photoshop or gimp a lot. Essentially the colors are taken from the url and used as follows. The first color will be the background color of the image. The second color will be applied to those pixels where the red channel is turned on.

/biochrome/ff0000_00ff00_0000ff_ccffff/picure.gif

Will take the file and replace colors in the global color table with those provided on the url. In the example whatever color was the first in the color table will be replaced with red. Colors are replaced until we run out of replacements or positions in the color table to replace.

For further details of how to create your graphics and examples of using BioChrome see the examples directory or the Image::BioChrome documentation.