Medium/goexif

Name: goexif

Owner: Medium

Description: Decode embedded EXIF meta data from image files.

Forked from: rwcarlsen/goexif

Created: 2017-01-03 21:38:36.0

Updated: 2018-02-28 10:32:40.0

Pushed: 2017-01-03 22:45:08.0

Homepage:

Size: 1081

Language: Go

GitHub Committers

User	Most Recent Commit	# Commits

Other Committers

User	Email	Most Recent Commit	# Commits

README

goexif

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

Like goexif? - Bitcoin tips welcome: 17M7LFh3ETz4bz83VikB7xuGQskt8K5Lj4

To install, in a terminal type:

et github.com/rwcarlsen/goexif/exif

Or if you just want the tiff package:

et github.com/rwcarlsen/goexif/tiff

Example usage:

age main

rt (
"fmt"
"log"
"os"

"github.com/rwcarlsen/goexif/exif"
"github.com/rwcarlsen/goexif/mknote"


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

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

// Optionally register camera makenote data parsing - currently Nikon and
// Canon are supported.
exif.RegisterParsers(mknote.All...)

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

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

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)