• snowe@programming.dev
    link
    fedilink
    English
    arrow-up
    4
    arrow-down
    1
    ·
    11 months ago

    High frequency? The lines don’t move at all. Just the masking of the player above them. There’s literally no frequency rate at which they are changing.

    • mindbleach
      link
      fedilink
      English
      arrow-up
      1
      arrow-down
      1
      ·
      11 months ago

      Image domain, not time domain. A high-frequency signal in time may rapidly go from very high values to very low values. A high-frequency image in space may rapidly go from very bright to very dark.

      You should look up how JPEG uses the Discrete Cosine Transform, because it is unreasonably cool. Nearly all modern lossy compression is based on intense cheating in image frequency domains.