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Comment difference (Score 1) 291

This is how I check for how much compression i have in my images.
1. Grab the original and the jpeg into photoshop (or whatever you use)
2. do a difference as your transfer mode. This will show you how different it is.
3. find out the value of all the pixels (I don't know ad them together or something)
Repeat the above steps with the second picture.
whichever is more is the one that is more different (why does that sound like bad English to me?) will be the lower quality image.
Use python and the PIL (python image library) to automate the whole thing and thats it.

Comment Can't even be Used? (Score 1) 265

Great. An article about a technology that can't be used not only for legal reasons but because of technological ones as well.

By the time this is fast enough to detect things at the speeds it needs to today, we'll be transferring stuff way faster... will it ever be able to catch up? And that's not even taking into account encryption.

Comment Re:suddenoutbreakofcommonsense (Score 2, Insightful) 366

Completely agree. Hiding the police behind a desk watching a camera or driving a car is not the way to go. These things are a lot less of a deterrent then having a few cops walk the beat in a bad neighborhood.

It's the same reason they took the cops out of the cars and put them on the street in New York.

Think about it. If your someone who's going to commit a crime are you going to be afraid of a camera that might have a person watching the screen that it's attached to? Probably not. How about a cop car that might drive by every twenty minuets or so with a cop in it who probably isn't looking hard around the streets he's driving on because he's on his way to a call or something. Probably wouldn't deter someone from breaking into a car and taking things. But, put a couple o cops walking the beat and watch how things change. The people who aren't doing anything bad feel more secure. The ones that were thinking of doing something bad will go somewhere else and the ones that are doing some thing bad will probably get caught.

There are some pretty bad neighborhoods around where I live and having a cop drive by make me feel just a little bit better then having a camera on a 30ft pole. Whereas getting to say hello to a pair of cops walking by me on the sidewalk makes me feel a whole lot better about my security of my surroundings. As if all I have to do is shout and they will come running to my aid and as unlikely that is to happen the other guy has got to be thinking the same thing.

Cameras don't make me feel secure, they make it feel like I'm being watched. A couple of cops walking the beat on the other side of the street? They just make me feel secure.
Privacy

Schneier, UW Team Show Flaw In TrueCrypt Deniability 225

An anonymous reader writes "Bruce Schneier and colleagues from the University of Washington have figured out a way to break the deniability of TrueCrypt 5.1a's hidden files. What about the spanking-new TrueCrypt 6? Schneier says that 'The new version will definitely close some of the leakages, but it's unlikely that it closed all of them.' Meanwhile, PC World is reporting that the problems Schneier and colleagues found are bigger than just TrueCrypt. Among their discoveries: Word auto-saves the contents of encrypted files to the unencrypted portions of your disk, and this problem should apply to all non-full disk encryption software. Their research paper will appear at Usenix HotSec '08."
Communications

A DIYer's Quick Guide To Cheap Wireless Extension 148

An anonymous reader writes "This piece is described in one of the comments on it as 'a little piece of genius'... and I have to agree! Although Peter Cochrane seems a bit of a crack pot, the ways that he comes up with to get connected when he's out of range in the sticks are pure genius and he makes them appear really simple! Think old satellite dishes, USB dongles and plastic bags and you'd be on the right tracks to upping wi-fi signal by 4 bars." A perfect excuse to link to one of my favorite sites, if you want more details and photos on similar jury-rigged long-distance connections. However, your meterage may vary — I've found USB Wi-Fi devices to be pretty fickle under Linux, with some distros working way better than others.
Space

Steven Hawking Considering Move To Canada 378

thepacketmaster learned of "...the possibility of Steven Hawking moving to Waterloo in Canada: 'A report out of Britain suggests Stephen Hawking is considering an invitation to come work at the Perimeter Institute for Theoretical Physics....But he's also being encouraged to move to Ontario by his University of Cambridge colleague Neil Turok, the mathematical physicist who will take over as Perimeter's executive director on Oct. 1. Perimeter confirmed last night that it has made a standing offer to Hawking...Turok is leaving Cambridge after failing to persuade university authorities, research councils and sponsors to spend $40 million...By comparison, Waterloo's Perimeter Institute has about $600 million in funding...The addition of Hawking to Perimeter's staff of top physicists would be a major coup for the research institute, founded in 1999 by Mike Lazaridis, founder and co-CEO of Research In Motion, which makes the BlackBerry.'"
The Almighty Buck

Nielsen Collects FL Tax Breaks, Then Outsources Jobs 572

theodp writes "The poop is hitting the fan over tax breaks given to ratings giant Nielsen Co., which pocketed millions in Florida jobs-creation tax concessions but has turned around and dismissed hundreds of local workers after inking a $1.2B outsourcing deal with Tata Consultancy Services of Mumbai. Lou Dobbs is on the case. Lou may go even more ballistic once he sees the Nielsen-Tata pact, which assures Nielsen that OT worries are a thing of the past ('there shall be no additional charge for overtime work'), allows Nielsen to have unsatisfactory Tata hires replaced within 4 weeks of starting with no charge for the original or re-performed work, gives Nielsen up to 6 man-weeks of free labor when a Tata worker is replaced, and allows Nielsen to make 'any TCS Resource' disappear with no more than 5 days notice if their presence 'is not in the best interests of Nielsen.' Nielsen execs have launched a PR counter-attack, pledging not to bully 85 year-old ladies in future layoffs. In a Letter to the Citizens, Nielsen CEO David L. Calhoun explained that Tata won a 'rigorous competition' to get the job, failing to mention that Tata was also tapped by Nielsen EVP Mitchell Habib in his CIO roles at both GE and Citigroup."
Data Storage

1TB Blu-Ray Compatible Optical Disc Announced 256

red_dragon writes "An article on The Register tells the news of an announcement of a new 1TB optical drive and disc that will be backwardly compatible with Blu-ray discs. The technology, developed by Call/Recall in partnership with Nichia, uses a rhodamine-type dye in a 200+-layer recording medium that gives off light when excited by a laser beam, along with a single fluid-filled lens to read multiple layers by varying the amount of fluid to change the focal length. The technology is designed to work with Nichia's blue-violet laser diodes, which are already used in Blu-ray drives."

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