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Basically, no.
I'm not sure how much u know about graphics and displays etc, but basically everything is composed of tiny little dots, called pixels. A small picture (eg this smiley face ) is 15 pixels x 15 pixels. Thus there's 225 coloured dots in there. When you stretch it with something like Paint or Photoshop, all it does it is take the dots and make them larger.
What the program does is the initial 225 dots to approximate what the image would look like if it was originally 100 x 100 pixels. That's why it's fuzzy - the computer doesn't know exactly where to put definite lines and colour changes etc. When resizing an image, all I can suggest is to keep the dimensions the same so the image won't be stretched out of proportion.
So basically, when you see in movies like Enemy of the State, people using computers to first enlarge a still image, then hitting a button to magically "enhance" it, making the previously illegible numbers/words readable, its just BS. The information simply isn't there.
Hope this helps  
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