Dct
Features
- DCTII, DCTIII supported
- non power of 2 supported
- O(N) complexity (TODO: O(logN))
Products using this gem
Installation
Add this line to your application's Gemfile:
gem 'dct'
And then execute:
$ bundle
Or install it yourself as:
$ gem install dct
Usage
DCTII
# prepare input
input = (1..3).map { |i| i}
# transform
output = Dct.dct_type2(input)
DCTIII
# prepare input
input = (1..3).map { |i| i}
# transform
output = Dct.dct_type3(input)
Development
Welcome to your new gem! In this directory, you'll find the files you need to be able to package up your Ruby library into a gem. Put your Ruby code in the file lib/dct. To experiment with that code, run bin/console for an interactive prompt.
After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/contribu/dct.
License
The gem is available as open source under the terms of the MIT License.