Colorant is a small utility to determine which colors are present in a
particular image, and how much they appear. It wraps ImageMagick's convert
command, so it has to be installed on the system.
Just put it in your Gemfile:
gem "colorant"
And wherever you want, you only need a filename, and you get an array of color percentual frequencies of your image.
Colorant.process "path/to/my/leaves.jpg"
# => [["Brown", 78.95], ["Green", 3.85], ...]
These are other options you can specify:
Colorant.process "file", :colors => 5, # Default is 8
:depth => 24, # Default is 16
:extended => true # Use more accurate color names
# => [["Vanilla Brown", 78.95], ["Lime Green", 3.85], ...] (up to 5 colors)
You can also use colorant from the command line. It is simple:
gem install colorant
colorant path/to/my/photo.jpg --colors 9 --extended
And the output:
Cocoa Brown -- 40.54 %
Moccaccino Red -- 17.88 %
Rock Brown -- 12.76 %
...
The options you can use are the same as the above explained, just with the CLI-like format.
- Fork the project.
- Make your feature addition or bug fix.
- Add specs for it. This is important so I don't break it in a future version unintentionally.
- Commit, do not mess with rakefile, version, or history. If you want to have your own version, that is fine but bump version in a commit by itself I can ignore when I pull.
- Send me a pull request. Bonus points for topic branches.
Copyright (c) 2010 Codegram. See LICENSE for details.