A brief discussion of Dithering

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  • เผยแพร่เมื่อ 25 ม.ค. 2025

ความคิดเห็น • 18

  • @strakhov
    @strakhov 23 วันที่ผ่านมา

    As a Rubik's Cube Artist and a programmer, I've been looking for these kind of explanation for quite a while. Thank you so much for creating this video!

  • @rianquack
    @rianquack ปีที่แล้ว +2

    Thank you for this! I was looking for a good video that explained dithering and this really helped.

  • @paulwesley3862
    @paulwesley3862 2 ปีที่แล้ว +5

    It feels to me that the Tucson images with gamma correction applied are overall a little bit darker then the real image. I feel like the non gamma corrected version is more matching. Could you analyze that? Maybe it's just me / an optical illusion.

    • @theosib
      @theosib  2 ปีที่แล้ว +2

      Well, there's a lot of subjectivity to it, and using a geometric function (square root) is an over-simplification. If we wanted to REALLY get it right, we'd have to look up the DICOM-14 spec or something like that and get an accurate perception curve.

    • @paulwesley3862
      @paulwesley3862 2 ปีที่แล้ว

      @@theosib guess there is the next video xD
      but that makes sense thx

    • @andybrice2711
      @andybrice2711 หลายเดือนก่อน +1

      I thought the same. I wonder if it's something to do with our monitor calibration.

  • @haph2087
    @haph2087 2 ปีที่แล้ว +2

    Perhaps that top left corner artifact of Floyd-Steinberg dithering could be reduced by copying the left edge and top edge outwards.
    Like to make the picture 10-20 pixels wider and taller by adding 10-20 copies of the left edge and the top edge.

  • @acheronexile
    @acheronexile 2 ปีที่แล้ว +2

    If you take a step backwards and squint your eyes.
    It looks normal, no matter how close I get.

  • @jacobroper6276
    @jacobroper6276 2 ปีที่แล้ว +3

    Oddly, I prefer most of the toucan outputs without the gamma correction. I feel like I can see more meaningful detail the lighter images

    • @theosib
      @theosib  2 ปีที่แล้ว

      I probably should use an image with more lighter stuff in it. I think that toucan is overall too dark.

  • @theosib
    @theosib  2 ปีที่แล้ว +1

    I wonder who watches the video early enough that they get to hear a flub I edited out using youtube studio. 😁

    • @paulwesley3862
      @paulwesley3862 2 ปีที่แล้ว +1

      the one where there is a 5 second silence?

    • @theosib
      @theosib  2 ปีที่แล้ว +1

      @@paulwesley3862 Yeah. TH-cam said it could take ours to take effect.

  • @Shack263
    @Shack263 8 หลายเดือนก่อน

    Is there a reason behind the gamma corrected dithered images being consistently darker than the ground truth?

  • @bachi129
    @bachi129 2 ปีที่แล้ว

    Why is each pixel's value multiplied by 4 before rounding?

  • @meharjeetsingh5256
    @meharjeetsingh5256 ปีที่แล้ว

    can u also make one on RGB and YUV

  • @meharjeetsingh5256
    @meharjeetsingh5256 ปีที่แล้ว

    very nice video

  • @bengineer8
    @bengineer8 2 ปีที่แล้ว +1

    Neat.