An open source image annotation app enabling the distributed annotation and comprehensive representation of images. Long descriptions can range from one sentence to several paragraphs. The software was developed by the Museum of Contemporary Art Chicago to support a distributed workflow for describing their images and publishing those descriptions to the web.
An image like this would traditionally be described by alt text like
A red, white, and blue fabric canopy presses against walls of room; portable fans blow air into the room through a doorway.:
Kris Martin, Belgian, b. 1972. T.Y.F.F.S.H., 2011. Collection: Museum of Contemporary Art. Photo: Nathan Keay, © MCA Chicago.
Coyote aims to provide more comprehensive representations:
This is an installation that viewers are invited to walk inside of. From this viewpoint you are looking through a doorway at a slight distance, as if standing inside of a large cave and looking out of its narrow entrance at the world outside. The walls of this cave are alternating stripes of red, white, and blue material that seems to be made of some kind of thin fabric. These colored stripes spiral around toward the entrance, as if being sucked out of the opening. The inside of the cave is more shadowed and the area outside is brightly lit. Gradually you notice that there are in fact two openings lined up in front of each other, straight ahead of you: the first one is a tall rectangle—the red, white and blue fabric is wrapped through the edges of a standard doorway; beyond that it continues to spiral around toward another circular opening. The center of this circle is much brighter, as if one had finally escape from the cave. At the center of that circular opening you see two large white fans facing your direction, blowing air into the cave-like opening. Beyond the fans you see a brown, square form, which is the bottom of a huge wicker basket. This basket, lying on its side, helps to reveal the truth about what you are seeing: You are standing inside of a huge hot air balloon, which is lying on its side. Blown by the fans, the fabric billows out to press out against the existing w alls of a large room, the malleable shape of the balloon conforming to the rectangular surfaces of an existing building–the gallery that contains it.
More information about image description projects at the MCA and elsewhere is available at coyote.pics, along with contact information for the project team. You can also view or hear image descriptions on the MCA website.
Table of contents
The app can run in a self-contained Docker container, which you can use for development. For more details see local development with Docker Compose.
Install Docker Community Edition
Run the following commands:
git clone https://github.com/coyote-team/coyote.git cd coyote docker-compose build # downloads images, builds containers docker-compose up # start running containers docker-compose up test # run the test suite docker-compose exec web bin/rake db:setup db:migrate db:seed # prepare database, add seed data docker-compose exec web bin/rake coyote:admin:create[firstname.lastname@example.org,password] # create initial user
http://localhost:3000in your browser.
Once the app is running you can interact with it using commands like this:
docker ps # list running containers docker-compose build # rebuild web container when new gems are installed docker-compose exec web pumactl restart # restart Puma docker-compose exec web bin/rails console # access Rails console docker-compose exec web bin/rake db:migrate # update the Postgres server managed by Docker
The app can also run in your local development environment, but requires a bit more know-how.
git clone https://github.com/coyote-team/coyote.git cd coyote bin/setup bin/rails server && open http://localhost:3000
The seed script builds a simple user, so you can login as
We have setup a
Guardfile to speed up development. Try
bundle exec guard.
Testing Mailers in Development Mode
The settings in [sample.env] work with mailcatcher:
gem install mailcatcher # runs independently of the app, so this gem is not part of our Gemfile mailcatcher -f # much better to run this in foreground vs. the default daemon mode open http://127.0.0.1:1080/ # mail delivery console
Re-seeding the Database
You can regenerate development environment data by running
bundle exec rake dev_only:reseed.
YARD documentation is hosted at coyote-team.github.io.
Fresh documentation can be generated locally by running
bundle exec rake coyote:docs OUT=docs/apipie. The
OUT parameter is for
Coyote design refinements are documented in design_refinements.pdf.
We can extend the functionality of Coyote to better integrate with your particular CMS with a strategy file. For an example, check out /lib/coyote/strategies/mca.rb.
More info regarding accessibility:
- A11Y Guidelines
- Sina's Links on Accessibility
- ARIA in HTML and ARIA
- ABS's Guidelines for Verbal Description
- Tobey Albright, MCA Chicago - graphic design
- Sina Bahram, Prime Access Consulting - concept and direction
- Susan Chun, MCA Chicago - project management
- Anna Lavatelli, MCA Chicago - project management
- Christopher Reed, SEEREAD.info - development
- Mike Subelsky, subelsky.com - development