Detect identical & black frame in video with ffmpeg?

Thumbnail creation is a very needed feature for any social networking site. Obviously, ffmpeg is the ideal solution for generating thumbnail.

Problem-1: Detecting identical thumbnails

Fortunately, we have a good solution--libpuzzle. It would be ideal to have a filter in ffmpeg for that.

Problem-2: Detecting black/dark frames

I'm still keenly looking for a solution tied up with ffmpeg. When Google turned no help, Heleena (my wife) solved it by calculating average luminance value of the frame and ignoring the frames based on certain preset threshold value--which worked better at that time.

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Humble Award - Dr. A.N. Sreevatsan

Dr. A.N. Sreevatsan , ENT specialist located in Adyar, Chennai is one of the gems available in medicines. No assistants in his consulting room and he'd take at least 15mins for every patients. So far I have referred many and all are happy with his approach. Every wannabe doctor should visit him personally to understand his approach. I wish him to be more famous than now. Update (2010-11-21) : Added link to Google Map Keywords : Sreevatsan, Srivatsan, ENT, Adyar, Chennai, Hospital, Doctor

BehaviorS.js - An alternative to Behaviour.js, event:Selectors and Low Pro libs for unobtrusive JavaScript programming

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Anna Hazare hype, irresponsibile media?

In recent times, barkhagate scam clearly shows that the Indian media is much corrupt than the politicians. They give unnecessary hype to certain things to get TRP . Ever since Anna has gone compared himself with Gandhi and Shivaji , it was clear that he's trying to draw politicians attention. It was a clean tactic than what Medha Patkar or any maoists couldn't get such hype. The TwitGens [sic] can't really understand how a Lokpal (ombudsman) system can even be corrupt; remember that the author of Savaukku did quit from DVAC (Directorate of Vigilance and Anti-Corruption). Economic Times article on this issue shares my views; I don't understand why they couldn't get such views published in Times of India. I think, we can't expect anything good from the media that's vehemently pushing AIADMK. Will Lok Pal be a Super Bureaucrat? Anna Hazare: Was Lok Pal protest compatible with constitutional democracy?