[imgSeek-devel] Percent

[Plamen T. <pla...@ya...>]

   Hello,
  
  I am studying the source of imgSeek (really amazing program). I try to understand how it works. The core of it is based on the article "Fast Multiresolution Image Querying". The score of every image in the DB is updated from calculations with the queried image. Then the less the value of the socre - the greater the similarity between the DB image and the query image.
  
  What I miss is how the score is converted to percentage of similarity. I didn't find the answer in the research article. In the imgSeek source, the conversion is:
  percent = - 100 * score / 38.7
  
  Where did the constant 38.7 come from? Is it accurate?  When I compare an image with itself, the percentage varies with the pictures (not fixed to 100% as I expected).
  
  Regards: 
  Plamen Todorov
			
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