How to update EXIF ​​image file tags in Ruby?

Question

The name says it all.

Answer 1

I am using MiniExiftool, a ruby ​​interface for Perl Exiftool.

http://miniexiftool.rubyforge.org/

http://www.sno.phy.queensu.ca/~phil/exiftool/

Using:

exif = MiniExiftool.new (file_path)

exif.date_time_original = Time.now

exif ["captionextract"] = "This is my new signature"

exif.save

Answer 2

Have you tried exifr ?

Answer 3

ruby-libexif: http://raa.ruby-lang.org/project/ruby-libexif/

: http://74.125.113.132/search?q=cache:yjOeG4UnD38J:tach.arege.net/trac/browser/debian/libexif-ruby/trunk/exif.rd.en%3Frev%3D51%26format%3Draw+ruby+set+exif+tag&cd=10&hl=en&ct=clnk&gl=us&client=firefox-a