doctrin13th said:Nowadays, pictures and created images in the internet are prone to "stealing" especially shared photos in blogs or personal website, that "thieves" use in their own ads, avatars, websites etc.
Not to go off-topic here, but how can I copyright my own pictures if copyright is un-registered? How can it be copyrighted without registration? What proof have I, that they are my own pictures, produced by me? One could claim that they're his/hers.
Without official or legal claims, I think it is really hard to pursue the "thief" or even prevent the stealing, especially at the present days, where most people lack moral values and principles and just being opportunistic to make works easy.
But YES it is stealing! At least, to us rightful owners who know the truth. But we can't do anything about it (if there is no official and registered copyright).
http://en.wikipedia.org/wiki/Exchangeable_image_file_format
http://www.plagiarismtoday.com/2009/03/26/adding-copyright-to-exif-automatically/
While not perfect, exif data created when the picture is taken can help some.