The Canadian Privacy Law Blog: Developments in privacy law and writings of a Canadian privacy lawyer, containing information related to the Personal Information Protection and Electronic Documents Act (aka PIPEDA) and other Canadian and international laws.
Recent Posts
- First stats on National Security Letters
- A new place to put cameras: Lollipops!
- Air Marshals denied boarding due to no-fly list
- If you handle personal information, you'd better k...
- Blawg Review #157
- Radwanski's lawyer to challenge admissibility of e...
- California takes lead on DNA crime-fighting techni...
- Wacky Canadians Still Believe in Privacy
- Feds to leave disclosure of data security breaches...
- Supreme Court of Canada throws out evidence of dru...
On Twitter
About this page and the author
The author of this blog,
David T.S. Fraser, is a Canadian privacy lawyer who practices with the
firm of McInnes Cooper. He is the author of the Physicians' Privacy Manual. He has a national and international practice advising corporations and individuals on matters related to Canadian privacy laws.
For full contact information and a brief bio, please see David's profile.
Please note that I am only able to provide legal advice to clients. I am not able to provide free legal advice. Any unsolicited information sent to David Fraser cannot be considered to be solicitor-client privileged.
Privacy Calendar
Archives
- January 2004
- February 2004
- March 2004
- April 2004
- May 2004
- June 2004
- July 2004
- August 2004
- September 2004
- October 2004
- November 2004
- December 2004
- January 2005
- February 2005
- March 2005
- April 2005
- May 2005
- June 2005
- July 2005
- August 2005
- September 2005
- October 2005
- November 2005
- December 2005
- January 2006
- February 2006
- March 2006
- April 2006
- May 2006
- June 2006
- July 2006
- August 2006
- September 2006
- October 2006
- November 2006
- December 2006
- January 2007
- February 2007
- March 2007
- April 2007
- May 2007
- June 2007
- July 2007
- August 2007
- September 2007
- October 2007
- November 2007
- December 2007
- January 2008
- February 2008
- March 2008
- April 2008
- May 2008
- June 2008
- July 2008
- August 2008
- September 2008
- October 2008
- November 2008
- December 2008
- January 2009
- February 2009
- March 2009
- April 2009
- May 2009
- June 2009
- July 2009
- August 2009
- September 2009
- October 2009
- November 2009
- December 2009
- January 2010
- February 2010
- March 2010
- April 2010
Links
Blogs I Follow
Small Print
The views expressed herein are solely the author's and should not be attributed to his employer or clients. Any postings on legal issues are provided as a public service, and do not constitute solicitation or provision of legal advice. The author makes no claims, promises or guarantees about the accuracy, completeness, or adequacy of the information contained herein or linked to. Nothing herein should be used as a substitute for the advice of competent counsel.
This web site is presented for informational purposes only. These materials do not constitute legal advice and do not create a solicitor-client relationship between you and David T.S. Fraser. If you are seeking specific advice related to Canadian privacy law or PIPEDA, contact the author, David T.S. Fraser.
Friday, May 02, 2008
Avoiding camera noise for anonymous photos
You learn something new every day. Apparently each digital camera, in addition to EXIF info, has its own ditigal signature in the form of digital noise in your photos. A bunch of your photos can be correlated and can then be used to connect them to a particular camera.
If you have a desire to keep your photos unattributable, you may want to check this out:
Avoiding Camera Noise Signatures - Instructables - DIY, How To, photography, scienceIf you take enough images with your digital camera, they can all be compared together and a unique signature can be determined. This means that even when you think that you are posting a photo anonymously to the internet, you are actually providing clues for the government to better tell who you are. The larger the sample size of images they have, the easier it is them to track down images coming from the same camera. Once they know all the images are coming from the same camera, all they then have to do is find that camera and take a picture to confirm it beyond a reasonable doubt. It is important to remove this noise signature so that you cannot be tracked down. I cannot guarantee any of these methods will work beyond the shadow of a doubt because the woman doing research for the government on how to find the signature is very good. I can only promise that this will make their work more difficult.
Labels: privacy
The Canadian Privacy Law Blog is licensed under a
Creative Commons Attribution-Noncommercial-No Derivative Works 2.5 Canada License.
