Worst [non-color] aliasing?

Discussion in 'Digital Photography' started by Ilya Zakharevich, Jan 23, 2008.

  1. I'm thinking about how a good image down-scaler should look like. The
    info I'm missing is how the eye is sensitive to aliasing. So I need
    to do some experiments, and I need to know which kinds of
    images/patterns/textures lead to most egregious-looking aliasing.

    Let me stress that, at this moment, I'm not interested in
    color-aliasing (which is the artefact of Bayer-filter sensors). So
    could you please report only texture aliasing with B&W digital
    sensors, or Foveon sensors, or (most important) aliasing which appears
    when down-sizing fine-looking images (with not-so-smart algorithms).

    Alternatively, if somebody already did this research (what contrast on
    which spacial frequencies [relative to Nyquist] is relevant), I would
    be very grateful if people share the references.

    Thanks,
    Ilya
    Ilya Zakharevich, Jan 23, 2008
    #1
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