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From: "Ahmed " <mogwari2000@yahoo.com>
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Subject: Re: data compression
Date: Fri, 16 May 2008 21:11:02 +0000 (UTC)
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1. i compute radon transform of the signature image for 
angles 0 (horizontal projection) and 90 (vertical 
projection).
it is deffinitly that the signature images can't be 
reconstructed from these two projections (it seems you 
like to tell me that these two projections not enough to 
classify signatures).

2. projections here means horizontal and vertical 
projections.