Provides decoding of basic exif and tiff encoded data. Still in alpha – no guarantees. Suggestions and pull requests are welcome. Functionality is split into two packages – “exif” and “tiff” The exif package depends on the tiff package. Documentation can be found at http://godoc.org/github.com/rwcarlsen/goexif

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To install, in a terminal type:

go get github.com/rwcarlsen/goexif/exif

Or if you just want the tiff package:

go get github.com/rwcarlsen/goexif/tiff

Example usage:

package main

import (


func ExampleDecode() {
 fname := "sample1.jpg"

 f, err := os.Open(fname)
 if err != nil {

 // Optionally register camera makenote data parsing - currently Nikon and
 // Canon are supported.

 x, err := exif.Decode(f)
 if err != nil {

 camModel, _ := x.Get(exif.Model) // normally, don't ignore errors!

 focal, _ := x.Get(exif.FocalLength)
 numer, denom, _ := focal.Rat2(0) // retrieve first (only) rat. value
 fmt.Printf("%v/%v", numer, denom)

 // Two convenience functions exist for date/time taken and GPS coords:
 tm, _ := x.DateTime()
 fmt.Println("Taken: ", tm)

 lat, long, _ := x.LatLong()
 fmt.Println("lat, long: ", lat, ", ", long)


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