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NovickProf's profile
David Novick
David Novick
David Novick
@NovickProf

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David Novick

@NovickProf

Professor of Engineering Education and Leadership, the University of Texas at El Paso. Tweets cover innovation & entrepreneurship, improv, and color illusions.

El Paso, TX
cs.utep.edu/novick
Joined September 2016

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    David Novick‏ @NovickProf 18 Jul 2018

    A new Munker illusion, which I call confetti. All the dots in the background are the same color (RGB 250, 219, 172) but are perceived as four different colors. The differences are subtle, though, and depend on the size of the image when it's viewed. cc @AkiyoshiKitaokapic.twitter.com/vT6x64LLTy

    7:41 AM - 18 Jul 2018
    • 6,808 Retweets
    • 17,553 Likes
    • Mohammad Masoud L4nce STREET SMARTS A Good Username 𝓣𝓾𝓷𝓪👑 PoetBully True Will Albarnie Andrew Walters 🌐
    191 replies 6,808 retweets 17,553 likes
      1. New conversation
      2. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 18 Jul 2018
        Replying to @NovickProf

        Magnificent! I have followed your idea and have made a similar image that yellow hearts appear to be different in color.pic.twitter.com/qLTqVebyvg

        12 replies 204 retweets 723 likes
      3. David Novick‏ @NovickProf 18 Jul 2018
        Replying to @AkiyoshiKitaoka

        Really nice! Your three-color version is more vivid than the four-color illusion because the gaps between the lines are constant width. I'd been experimenting with three-color illusions, but I found irresistable the idea of the four-color illusion.

        3 replies 5 retweets 122 likes
      4. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 18 Jul 2018
        Replying to @NovickProf

        I think your way of design is new!

        0 replies 1 retweet 26 likes
      5. End of conversation
      1. New conversation
      2.  🐣 Avital Shtapura A.K.A. Mag Magnet  🐥‏ @AviShtap 18 Jul 2018
        Replying to @NovickProf @AkiyoshiKitaoka

        WOW! When was this illusion discovered? It’s fantastic!

        2 replies 1 retweet 8 likes
      3. David Novick‏ @NovickProf 18 Jul 2018
        Replying to @AviShtap @AkiyoshiKitaoka

        Munker published his work in 1970 on the illusion that now bears his name. My efforts are just variations on the results of Munker and @AkiyoshiKitaoka. I think, though, that my "confetti" version of the the Munker illusion is novel.

        1 reply 5 retweets 54 likes
      4. Raf‏ @ansicone 19 Jul 2018
        Replying to @NovickProf @AviShtap @AkiyoshiKitaoka

        But this is hardly an illusion - the perceived colours are there in form of individual RGB channels, at certain distance (and or poor eye sight) your see the composite colour as they mix (akin to how basic colour LCD or CRT works). Ok, perhaps an illusion as exact colours are new

        0 replies 0 retweets 6 likes
      5. End of conversation
      1. New conversation
      2. Karim Hosein‏ @TopRockPhoto 19 Jul 2018
        Replying to @NovickProf @AkiyoshiKitaoka

        Two things I noticed, on closer inspection; ① The hue of the green bands change over six of the circles, and the relative sizes of the blue/purple bands change over three of them. I am assuming, not part of the illusion, but accident during CnP?

        1 reply 1 retweet 4 likes
      3. David Novick‏ @NovickProf 19 Jul 2018
        Replying to @TopRockPhoto @AkiyoshiKitaoka

        Correct. The green differences are due to copy-paste, and the minor changes in the size of the bands is due to the limits of my abilities to get good alignment. Here's a version with most of this fixed. I didn't anticipate the original image getting 10k likes!pic.twitter.com/GykAQraDJf

        2 replies 19 retweets 62 likes
      4. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 19 Jul 2018
        Replying to @NovickProf @TopRockPhoto

        Congratulations!pic.twitter.com/emfZoMzLUh

        1 reply 0 retweets 17 likes
      5. 1 more reply
      1. New conversation
      2. (((Robert Watts)))‏ @RobertAlanWatts 20 Jul 2018
        Replying to @NovickProf @Raspberry_Pi @AkiyoshiKitaoka

        When I take a screen grab of the image and open it in GIMP, the colour picker shows them as being different. Is this an artefact of copying the image?

        1 reply 1 retweet 2 likes
      3. David Novick‏ @NovickProf 20 Jul 2018
        Replying to @RobertAlanWatts @Raspberry_Pi @AkiyoshiKitaoka

        Must be an artifact. The dots were colored simultaneously, and my color picker on the png image shows the values to be correspondingly identical.

        0 replies 1 retweet 4 likes
      4. End of conversation
      1. New conversation
      2. Bob Mahar‏ @BobMahar 20 Jul 2018
        Replying to @NovickProf @AkiyoshiKitaoka

        Some wierd stuff with the color bars, like someone tried to "enhance" things.pic.twitter.com/iA4vLn8POY

        1 reply 1 retweet 6 likes
      3. David Novick‏ @NovickProf 20 Jul 2018
        Replying to @BobMahar @AkiyoshiKitaoka

        The differences in the green stripes were due to a copy-paste error. Here's a version with this fixed. I didn't anticipate the original image getting 10k likes!pic.twitter.com/MARe7lockt

        1 reply 2 retweets 21 likes
      4. 1 more reply
      1. New conversation
      2. PaWan $uThar‏ @PawanSutharD 19 Jul 2018
        Replying to @NovickProf @AkiyoshiKitaoka

        All Blue Lines are Parallel!!! Isn't it???pic.twitter.com/e77mx51g1H

        6 replies 38 retweets 135 likes
      3. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 19 Jul 2018
        Replying to @PawanSutharD @NovickProf

        For the illusion of fringed edges, see: http://www.psy.ritsumei.ac.jp/~akitaoka/fringede.html …pic.twitter.com/wYOsnoMTsV

        1 reply 22 retweets 103 likes
      4. Akiyoshi Kitaoka‏ @AkiyoshiKitaoka 29 Jul 2018
        Replying to @AkiyoshiKitaoka @PawanSutharD @NovickProf

        Thanks for いいね100.

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. David Novick‏ @NovickProf 23 Jul 2018
        Replying to @sambeal @eboyden3 @AkiyoshiKitaoka

        I'm not sure what you mean. The dots are exactly the same color, and the background stripes are all the same. The only differences between the dots are the foreground stripes.

        0 replies 0 retweets 1 like
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