https://github.com/vanng822/imgscale
Middleware/handler for scaling image in golang
https://github.com/vanng822/imgscale
golang image-scaling imagemagick
Last synced: about 1 year ago
JSON representation
Middleware/handler for scaling image in golang
- Host: GitHub
- URL: https://github.com/vanng822/imgscale
- Owner: vanng822
- License: mit
- Created: 2014-12-20T15:33:22.000Z (over 11 years ago)
- Default Branch: master
- Last Pushed: 2017-02-20T02:02:11.000Z (over 9 years ago)
- Last Synced: 2025-04-30T05:48:18.247Z (about 1 year ago)
- Topics: golang, image-scaling, imagemagick
- Language: Go
- Size: 397 KB
- Stars: 5
- Watchers: 2
- Forks: 1
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
## imgscale
Middleware/handler for scaling image in golang. Use for serving images in different formats. Can use as middleware which is compitable with http.Handler
* Crop & Scale
* Autorotate
* Watermark
Warning: image processing is very resource consuming. If you use this in production you should put a cache server in front, such as Varnish.
## Demo server
http://imgscale.isgoodness.com/ is set up with arbitrary remote image. Please be nice!
Formats: 100x100, 100x0, 0x360, 0x170, originalx1, original
And the url will be http://imgscale.isgoodness.com/img/FORMAT/REMOTE_IMAGE
Check out [forest waterfall](http://imgscale.isgoodness.com/img/0x360/http://imgscale.isgoodness.com/img/0x170/http://cdn.superbwallpapers.com/wallpapers/nature/forest-waterfall-22452-1920x1080.jpg)
## Dependencies
You need to install ImageMagick first.
### MacPorts
sudo port install ImageMagick
### Homebrew
brew install imagemagick
### Ubuntu/Debian
sudo apt-get install libmagickwand-dev
### ImageMagick binding
go get github.com/vanng822/imgscale/imagick
## Install
go get github.com/vanng822/imgscale/imgscale
## Example
// r2router: github.com/vanng822/r2router
app := r2router.NewSeeforRouter()
handler := imgscale.Configure("./config/formats.json")
defer handler.Cleanup()
app.WrapHandler(handler.ServeHTTP)
go http.ListenAndServe(fmt.Sprintf("%s:%d", "127.0.0.1", 8080), app)
// Negroni
app := negroni.New()
handler := imgscale.Configure("./config/formats.json")
// Free C pointers and terminate MagickWand environment
defer handler.Cleanup()
n.UseHandler(handler)
go http.ListenAndServe(fmt.Sprintf("%s:%d", "127.0.0.1", 8080), app)
// Martini
app := martini.Classic()
handler := imgscale.Configure("./config/formats.json")
defer handler.Cleanup()
app.Use(handler.ServeHTTP)
go http.ListenAndServe(fmt.Sprintf("%s:%d", "127.0.0.1", 8080), app)
// http.Handler
handler := imgscale.Configure("./config/formats.json")
defer handler.Cleanup()
http.Handle("/", handler)
http.ListenAndServe(fmt.Sprintf("%s:%d", "127.0.0.1", 8080), nil)
## GoDoc
[](https://godoc.org/github.com/vanng822/imgscale/imgscale)
## Try it out
### checkout
git clone https://github.com/vanng822/imgscale.git
### install dependencies
go get github.com/gographics/imagick/imagick
go get github.com/vanng822/imgscale/imgscale
go get github.com/go-martini/martini
go get github.com/codegangsta/negroni
### run application
go run example/all.go
### browse it
http://127.0.0.1:8080/img/100x100/kth.jpg
http://127.0.0.1:8081/img/100x100/http://127.0.0.1:8080/img/original/kth.jpg
http://127.0.0.1:8082/img/100x100/kth.jpg