Hmm. It seems weird that any tricolour flags would have different entropies, but I don’t know how you would otherwise do a multichannel entropy.
I was imagining a kolmogorov-esque doodad
Comment on What did I forget?
residentoflaniakea@discuss.tchncs.de 3 months 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.
FishFace@piefed.social 3 months ago
residentoflaniakea@discuss.tchncs.de 3 months ago
Yes! And weirder that bicolour banded flags are not consistently on top. I suspect some float errors. I just know that using the typical Shannon style does even worse. I might add some filter that calculates a differential or something.
kittenzrulz123@lemmy.dbzer0.com 3 months ago
I also love flags, flags are so beautiful (except the flag of Haiti, fuck you Haiti with your MS paint looking flag)
residentoflaniakea@discuss.tchncs.de 3 months 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.
prole@lemmy.blahaj.zone 3 months ago
What is it about the flag of Japan that you like so much?
residentoflaniakea@discuss.tchncs.de 3 months ago
Simplicity I suppose. Colour combination. In my opinion if i can draw it from memory it’s a good flag.
clay_pidgin@sh.itjust.works 3 months ago
Two colors, with a basic shape centered? I guess it’s ok.
voodooattack@lemmy.world 3 months ago
“Welcome to fun with flags!”
AnarchistArtificer@slrpnk.net 3 months 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
Axolotl_cpp@feddit.it 3 months ago
How do you rate entropy? Is the script open source so we can see it?
residentoflaniakea@discuss.tchncs.de 3 months 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_cpp@feddit.it 3 months ago
I see, thank you that’s interessing; There is gitlab as github alternative but i think that making another account is just better then. Another solution is making here a spoiler with the code in it
FishFace@piefed.social 3 months ago
How are you defining the entropy of a flag?
gandalf_der_12te@discuss.tchncs.de 3 months ago
i’d define it as size of an svg file that represents the flag, since more complex flag -> more fundamental elements (rectangles, circles) needed -> bigger file size -> more entropy.
ArmoredThirteen@lemmy.zip 3 months ago
Subtracting it’s normalized negentropy from 1
CelloMike@lemmy.world 3 months ago
Well you gotta share that ranking now…
residentoflaniakea@discuss.tchncs.de 3 months ago
I owe it to the community. Since I don’t have it anymore I am coding it up again. Allow me some time - it’s weekend and I have family to look after.
ByteJunk@lemmy.world 3 months ago
And that script. I’m curious how you implemented it.
idealotus@lemmy.world 3 months ago
…and what is the stack ranked result?
residentoflaniakea@discuss.tchncs.de 3 months ago
That really depends on the algorithm used. Ideally it takes colous and spacial information into account. I’ll keep you posted on the ranking.
drosophila@lemmy.blahaj.zone 3 months ago
I like Kazakhstan’s flag because I think its a nice combination of colors:
Image
Its not very low entropy though, at least not compared to ones like Germany’s or Ukraine’s.