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https://github.com/gargron/blurhash
Encode an image as a small string that can be saved in the database, returned in API responses, and displayed as a blurred preview before the real image loads
https://github.com/gargron/blurhash
Last synced: 4 days ago
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Encode an image as a small string that can be saved in the database, returned in API responses, and displayed as a blurred preview before the real image loads
- Host: GitHub
- URL: https://github.com/gargron/blurhash
- Owner: Gargron
- License: mit
- Created: 2019-04-20T02:15:16.000Z (over 5 years ago)
- Default Branch: master
- Last Pushed: 2024-09-26T16:24:36.000Z (3 months ago)
- Last Synced: 2024-12-12T09:41:56.354Z (11 days ago)
- Language: C
- Homepage:
- Size: 135 KB
- Stars: 295
- Watchers: 5
- Forks: 25
- Open Issues: 9
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Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE.txt
- Code of conduct: CODE_OF_CONDUCT.md
Awesome Lists containing this project
README
# Blurhash
This is a Ruby binding for the Blurhash library. With it you can encode an image as a small string that can be saved in the database, returned in API responses, and displayed as a blurred preview before the real image loads.
Blurhash is written by [Dag Ågren](https://github.com/DagAgren).
## Installation
Add this line to your application's Gemfile:
```ruby
gem 'blurhash'
```
And then execute:
$ bundle
Or install it yourself as:
$ gem install blurhash
## Usage
To generate the blurhash string from an image file, you need to read in the image pixel data yourself, for example with RMagick:
```ruby
require 'blurhash'
require 'rmagick'
image = Magick::ImageList.new('foo.png')
puts Blurhash.encode(image.columns, image.rows, image.export_pixels)
```
To display the visual component once you have the blurhash string, you need another library in JavaScript, Swift, Kotlin and so on. Fore more information, see [the original blurhash repository](https://github.com/woltapp/blurhash).
## Development
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](https://rubygems.org).
## Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/Gargron/blurhash. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.
## License
The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
## Code of Conduct
Everyone interacting in the Blurhash project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/Gargron/blurhash/blob/master/CODE_OF_CONDUCT.md).