• residentoflaniakea@discuss.tchncs.deEnglish
    101·
    1 month ago

    I see a flag. I like flags. Especially the Japanese flags. I don’t specifically care for Japan, but the flag is one of my favourites. I prefer flags with low entropy: so I wrote a script once that ranks the nations flags by entropy so I could quantify my preference. Thanks for letting me infodump a bit.

    Edit: Due to people aski g for it: here is the top ten of my ranking:

    Nations' flag entropy ranking (n=208). 
Image source: Wikimedia.

0	white_field			-1.439759075204976e-10
1	Indonesia			3.3274441922278752
2	Germany			3.391689777286108
3	South_Ossetia			3.8174437373506778
4	Monaco			3.9718936201427066
5	Poland			3.9719290780440133
6	Austria			4.372592975412404
7	Ukraine			4.405280849871184
8	Hungary			4.4465472496385985
9	Albania			4.6134257669087395
10	Mauritius			4.707109405551959
11	Luxembourg			4.721346585737304

    Here’s how I defined the entropy value for each flag:

    def color_weighted_spectral_entropy(image):
    b_channel, g_channel, r_channel = cv2.split(image)
    
    # Calculate spectral entropy for each channel
    def channel_spectral_entropy(channel):
        f_transform = np.fft.fft2(channel)
        f_shifted = np.fft.fftshift(f_transform)
        magnitude_spectrum = np.abs(f_shifted)
        if np.sum(magnitude_spectrum) > 0:
            normalized = magnitude_spectrum / np.sum(magnitude_spectrum)
        else:
            normalized = magnitude_spectrum
        # Entropy calculation with color channel weighting
        epsilon = 1e-10
        entropy = -np.sum(normalized * np.log2(normalized + epsilon))
        
        return entropy
    
    weighted_entropy = (
        0.333 * channel_spectral_entropy(b_channel) +
        0.333 * channel_spectral_entropy(g_channel) +
        0.333 * channel_spectral_entropy(r_channel)
    )
    
    return float(weighted_entropy)

    “White_field” is just an array that holds zeroes. I use this as a sanity check. Code is on github. I can send DM to whomever is interested. I guess it can also be searched for.

    • AnarchistArtificer@slrpnk.netEnglish
      17·
      1 month ago

      I love that you have multiple people replying to you asking for technical details on how you ranked the flag entropy. This is how you know that you are amongst your people here <3

      • residentoflaniakea@discuss.tchncs.deEnglish
        2·
        1 month ago

        I tried different definitions and settled on spectral entropy. This one uses fourier transform and (I think) this takes the spacial relation of the pixels into account, as opposed to the more common Shannon definition. I’d like to share it but am not sure on how to do that: were I to use GitHub I would doxx myself.

        • Axolotl@feddit.it
          2·
          1 month ago

          I see, thank you that’s interessing;

          Btw there is gitlab as github alternative but i think that making another gh account is just better then. Another solution is making here a spoiler with the code in it

    • drosophila@lemmy.blahaj.zoneEnglish
      4·
      30 days ago

      I like Kazakhstan’s flag because I think its a nice combination of colors:

      Its not very low entropy though, at least not compared to ones like Germany’s or Ukraine’s.

      • residentoflaniakea@discuss.tchncs.deEnglish
        2·
        1 month ago

        Their previous version was indeed without the coat of arms. Much cooler I think. During that time the Liechtenstein flag was identical, but they (Liechtenstein) changed it upon discovery.

    • zaphod@sopuli.xyz
      18·
      1 month ago

      No idea. Cat ears seem to be more popular with computer science people, should’ve put them on the Rust logo instead.

    • benni@lemmy.worldOP
      8·
      1 month ago

      Couldn’t nicely put pngs with transparent backgrounds in there for these two, so they both got white backgrounds and put next to each other.

  • Obinice@lemmy.world
    271·
    1 month ago

    Stupidly large murika style cars are gonna be a no from me dawg

    Look at that thing, the bonnet comes up to this stomach!

    Not autism approved nu-uh

  • traceur402@lemmy.blahaj.zone
    271·
    1 month ago

    Wow, the precision with which this struck me is concerning. I’m really, incredibly autistic at all times aren’t I?

  • Mwa@thelemmy.clubEnglish
    9·
    1 month ago

    i see linux,minecraft,japan(i just like the games that originate from this country mostly),thinkpad,C,Rust
    wait…
    I think I’m autistic.

  • kittenzrulz123@lemmy.dbzer0.com
    8·
    1 month ago

    Me except im not that intrested in Japan (I love Vietnam tho), im not that intrested in Minecraft (ive just played it for too long), not that intrested in Pokémon (never got into it). You forgot a few things tho

    1. Programming socks
    2. Star Trek
    3. :3
    4. Mechanical keyboards
    5. Walkable cities (and a general obsession with people focused city planning)