Imgdiff

Add this line to your application's Gemfile:

gem 'imgdiff'

And then execute:

$ bundle

Or install it yourself as:

$ gem install imgdiff

After install,you can use imgdiff command in cli.

like below

imgdiff original_image_path target_image_path (output_path)

ImgDiff makes an image of diff between two image files. The same points are shown in black and colored points are diff.

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment. Run bundle exec imgdiff to use the gem in this directory, ignoring other installed copies of this gem.

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.

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/imgdiff. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.