what is a look Up taple (LUT) and how can it be used overcome the problems in digital imaging ?
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In image processing, lookup tables are often called LUTs, and they link index numbers to output values. One common LUT, called the colormap, is used to determine the colors and intensity values with which a particular image will be displayed.\n\nIt's important to note that, while often effective, lookup tables can result in a severe penalty if the computation it replaces is relatively simple, not only because retrieving the result from memory may require more time, but also because it may increase memory requirements and pollute the cache.If the table is large, each table access will almost certainly cause a cache miss. This is increasingly becoming an issue as processors outrace memory. A similar issue appears in rematerialization, a compiler optimization. In some environments, such as the Java programming language, table lookups can be even more expensive due to mandatory bounds checking involving an additional comparison and branch for each lookup.
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I would try using Yahoo Image Search.
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An image when taken by a digital device (digital image) is made up by a grid (normally) of pixels. This represents the fact that the screen they are displayed on is similarly made up of a grid, and the sensors used to capture the image were arranged in a grid. \n\nEach pixel contains values for colour and intensity. It is common that the image will contain details that cannot be detected easily by the human eye, but can be detected by a computer looking at the pixel values. To enhance the image, a program is used to create a new image that takes the old pixel values and alters them (say mutliplies by 10) to make the differences more noticable. \n\nOther enhancements can include adjusting for movement of the camera, smoothing a gritty image, blurring a sharp one, making brighter, making duller, converting to black and white (greyscale) etc. These are mostly matrix operations applied to each original pixel in turn.
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Picasa...free jpeg format software download from Google.\nWalmart.com Photo Center
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there are programs that can retrieve the images at a lowel format, you can try them for free, and if one works for you, buy  it, they don't cost but about 20.00, I use one called digital picture recovery for my clients, another one that works very well is photorecovery v3
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Google image search it.
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you could use Total Image Converter.  It is available for download at coolutils.com.
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google or yahoo images
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You can try Pixel, http://www.kanzelsberger.com/pixel/?page_id=12 , which has large ammounts of tools, Photoshop light(costs money), the Gimp http://www.gimp.org/ which is very complicated, or Seashore http://seashore.sourceforge.net/
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go to google.then images,type in your info.........BAM. its there.
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If you took a picture of a blank wall, then one color value would be sufficient to characterize the picture, with no information loss.  As soon as you complicate the picture, things get interesting.\n\nMost compression algorithms do involve a loss of resolution, but they attempt to minimize it.
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Cannot find. Take a photo of screen.
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do an "image" search and type in the details.
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Try here:\n\nhttp://www.extremepixels.com/forum/showthread.php?p=5144&mode=linear
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Alot of research has been put into things like this.\n\nYou're asking for quite a hunk of code.  If you want a good solution, you'll probably have to pay someone.\n\nFor this project to work, you'll need some sort of software that can take an image, verify that a person is in it, and then compare the image with a previous image to see if a person jumped, or ran or whatever else you want it to do.\n\nThis kind of technology will be in it's infancy for the next 15 years.
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Sure, look it up on their website! The pics might not be too great because the digital cameras they had back then didn't have the megapixels they do today.
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Do a Google Image Search.