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refactor(resize): extract

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Tomas Aparicio 2015-04-06 23:43:30 +02:00
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# bimg [![Build Status](https://travis-ci.org/h2non/bimg.png)](https://travis-ci.org/h2non/bimg) [![GitHub release](https://img.shields.io/github/tag/h2non/bimg.svg)]() [![GoDoc](https://godoc.org/github.com/h2non/bimg?status.png)](https://godoc.org/github.com/h2non/bimg)
Go library for blazing fast image processing based on [libvips](https://github.com/jcupitt/libvips) using C bindings.
Go small but featured library for blazing fast image processing based on [libvips](https://github.com/jcupitt/libvips) using C bindings.
bimg is designed to be a small and efficient library with a limited by generic specific set of features.
Thanks to libvips it's typically 4x faster than using the quickest ImageMagick and GraphicsMagick settings
or Go native image processing package, and in some cases it's even 8x faster processing JPEG images.
It supports JPEG, PNG, WEBP, TIFF and Magick image formats.
bimg is designed to be a small and efficient library with a specific but useful and generic set of features.
It uses internally libvips, which is typically 4x faster than using the quickest ImageMagick and GraphicsMagick settings or Go native `image` package, and in some cases it's even 8x faster processing JPEG images.
bimg can read JPEG, PNG, WEBP, TIFF and Magick formats and it can output to JPEG, PNG and WEBP.
It support common [image transformation](#supported-image-operations) operations such as crop, resize, rotate... and image conversion into multiple formats.
To getting started see the [examples](#examples) and [programmatic API](https://godoc.org/github.com/h2non/bimg) documentation.
bimg was heavily inspired in [sharp](https://github.com/lovell/sharp), a great node.js package for image processing build by [Lovell Fuller](https://github.com/lovell).
`Work in progress`
**Note**: bimg is still a beta package. PR and issues are highly appreciated
## Prerequisites
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- Enlarge
- Crop
- Rotate
- Flip/Flop
- Flip
- Extract area
- Extract image metadata (size, format, profile, orientation...)
- Image conversion to multiple formats
- EXIF metadata (size, alpha channel, profile, orientation...)
- Format conversion
## Performance