Russia: Incredible Color Pictures From A Century Ago, page 6


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reply posted on 13-9-2010 @ 10:56 PM by Blood Royal
reply to post by Droogie



Amazing photos. I am still in disbelief. I keep scanning the pictures saying to myself I know there is a car some where.


reply posted on 21-9-2010 @ 06:45 PM by andronaconda
reply to post by Droogie



A really great find!! Top marks for the posting!!

Cheers for that

edit on 21/9/10 by andronaconda because: It's early and my fingers aren't working properly!!




reply posted on 25-11-2010 @ 07:42 PM by RebelRevoltEvolve
reply to post by Droogie



Those are the coolest pictures i've seen in a while - hundreds of years old huh - thats sweet


reply posted on 2-2-2011 @ 07:49 AM by Soylent Green Is People
reply to post by Soylent Green Is People



I forgot to add to my post above that this is the came "basic" concept used by most digital cameras. The actual light sensor (CCD) in a digital camera is color-blind. It can only "detect" shades of gray. When you take a picture with your digital camera, the light is sent through different color filters (different wavelengths) before striking the CCD, giving the CCD information about the image in various shades of gray as seen through the different filters.

The camera's computer then takes over, and uses those shades of gray to try to determine what the color is actually supposed to be. This all happens very quickly, and all we ever see is the color picture -- albeit a color picture created by the camera's computer based on multiple gray-scale images.

That's why the "raw" pictures from the Mars Rovers are in black-and-white. Instead of the rover itself using the various gray-scale images (as seen through different filters in the Rover's camera) to build a color image inside the rover itself, the gray-scale images are sent back to Earth to allow the imaging scientists on Earth to build those color images. The reason for this is that there is valuable information in those multiple gray-scale pictures that can be lost when they are compiled into a single color image.


reply posted on 2-2-2011 @ 09:09 AM by Droogie
reply to post by Soylent Green Is People



Thanks for the input, it's some pretty interesting stuff that you're talking about. I'm actually learning something for a change
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