From: pcdhSpamMeSenseless@electrooptical.net   
      
   On 11/08/2013 03:57 PM, laloum.eric@gmail.com wrote:   
   > Dear All,   
   >   
   > Is it possible that an image is correctly sampled according to Nyquist (2 to   
   3 pixel per resolution element) but nevertheless show some pixelization effect   
   when sufficiently zoomed ?   
   > I guess both issues (Digital sampling and pixellisation) are highly   
   related...and it's quite easy to conceive that correct Nyquist sampling is a   
   necessary condition for avoiding pixelization, but is it also a sufficient   
   condition ?   
   >   
   >   I would say no but can't explain why ;-(   
   >   
   > Thanks,   
   >   
   >   Eric   
   >   
      
   Visible pixellation is caused by crude zoom algorithms that just   
   replicate pixels.   
      
   Cheers   
      
   Phil Hobbs   
      
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   Dr Philip C D Hobbs   
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