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<TITLE>The Photo Paradox: Downsizing</TITLE>
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In order to downsize an 8&times;8 pixel picture to a 4&times;4 pixel picture,
<br>we delete a lot of pixels (and lose in this way information)
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<td><img src="kleiner.png">
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Starting with an 8&times;8 pixel picture, 
<br>we build a new one, using four downsized pictures. 
<br>In the downsized pictures, we may use the same pixels of the original
<br>- but then we lose information!
<p>Better: we use for the four smaller pictures different pixels.
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<img src="kleiner-mal-4.png">
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In this way, we will not lose information!
<br>- all pixels reappear (but in different order): they are permuted.
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