3 ms·

Thanks. I'll add a window function and see if that helps.

• oakwhiz 13y ago
  I'm surprised that the ringing isn't that bad even without a window function.
• angersock 13y ago
  Try it with a checkerboard pattern--somewhat the pathological case. Gray cats are somewhat smooth from a signal standpoint.
  • eliteraspberrie 13y ago
    Good idea. Here's the result: http://imgur.com/a/EHNH0 http://imgur.com/a/EHNH0 Edit: I'll be adding a window function soon to attenuate the ringing, it'll be interesting to see the difference that makes.
    • dnautics 13y ago
      you can also try to apply a smoothening function: Usually multiplying by a gaussian in phase space will do, but this will cause your image to be blurred. What would be really impressive is if you could interpolate a pattern in the high frequency signal, and use it to "infer" values for your high frequency padding that "naturally cancel out" ringing to below the resolution of the imag.e
    • angersock 13y ago
      A beautiful example of ringing. :)