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Subject: How to get inverse filter for resized 2D image
Date: Tue, 18 Aug 2009 06:56:01 +0000 (UTC)
Organization: Indian Institute of Technology
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Hi
I have a 2D image img(256 x 256) resized to img_resize(128x128).
Can I get an estimate of the Low pass filter such that img_resize = img ** filter
(I heard that something like Lanczos resampling is a filter for such resizing purposes..)
Thanks for any help in advance.

with regards,
ramana