Nine-Volt

The home of the DigiPlate laptop mounting system.

Monthly Archives: February 2013

Image Noise: Bad for photographers, good for forensics

All cameras introduce varying degrees of imperfections. While these imperfections are undesirable for the consumer, they can be highly informative in an image forensic setting. Sensor imperfections, thermal effects, compression, etc. each introduce noise in the image. This noise manifests itself as slight variations in the recorded intensities of light. If a portion of an image is altered then it is likely that the underlying noise pattern will be disrupted. Differences in the noise pattern can therefore be used to detect and localize image tampering. Soon photo award shows will have their own CSI departments. Read the full research article here.


Photographing the World by Paraglider

Using a motorized paraglider, George Steinmetz, travels the world and photographs things that are only accessible by air. The paraglider allows for stealth take offs and landings and to fly at lower altitudes.


Alan Friedman’s Astonishing Photographs of the Sun Shot from… his Own Backyard

Alan Friedman points a telescope skyward from his backyard in downtown Buffalo, directly into the light of the sun. Using special filters attached to his camera, Friedman captures some of the most lovely details of the Sun’s roiling surface. The raw images are colorless and often blurry requiring numerous hours of coloring, adjusting and finessing to tease out the finest details, the results of which hardly resemble what I imagine the 10-million degree surface of Sun might look like. Instead Friedman’s photos appear almost calm and serene, perhaps an entire planet of fluffy clouds or cotton candy. Check out his work here, his Tumblr here and TedX talk he gave here.


Pretty Soon You Won’t Need a Location Scout

Google maps gets more and more amazing every day. We've all seen the Google cars driving around with all the cameras strapped to the roof. Now Google has done the same with people and sent them to places like the Grand Canyon. Check it out: Google also has a pretty good write up on the whole thing here.


SEO Tips for Photographers

FStoppers has posted a great article on SEO tips for photographers. Getting your page to the top of the search engines is extremely valuable for many photographers.