MSF Seminar 10
An Evaluation of the 'Halo' Artifact Detection Algorithm for High Dynamic Range Image Forensics
- When?
- Monday 23 January 2012, 16:00 to 17:00
- Where?
- 39 BB 02
- Open to:
- Public, Staff, Students
- Speaker:
- Mr Philip Betaman
In this discussion, we build upon our novel research in High Dynamic Range (HDR) imaging for Image Forensics by comparing the 'halo' artifact with a similar artifact caused by JPEG compression, known as the 'ringing' artifact (Gibb's Phenomenon). We briefly discuss the relationship between these two artifacts, how they appear in the Fourier transform space, and how reliable our scheme is at distinguishing between the two. We also analyse and evaluate each step of our algorithm in order to optimise it for producing more accurate results. Finally, a new framework for detecting the halo artifact is presented in reference to existing schemes that detect the ringing artifact, and our initial results will be discussed.
