Show HN: I made a CLI tool that turns pixels into emojis

[masterchief1s1k]

I see that you use euclidean distance of perceptual color and named your color function bad_color_distance. My only input here would be to try something like the CIEDE2000 color difference formula to see if the result can be further improved.

[caramellow]

I am currently just looking into other color spaces, but I'll have to check that out too! Thanks! :D

[JoBrad]

Read the README, and noticed the picture. My first thought was “why don’t they show the result?”.

Then it hit me. Excellent job!

[CrociDB]

Nice! I made a doom renderer with emojis some time ago, but I decided to keep the emojis bigger, so you could identify them. But I like your approach, will definitely try in my doom renderer too: https://github.com/CrociDB/doomoji

[JoeOfTexas]

I wonder if you could use this for some kind of "secret" message.

Or perhaps like a parity system like RAR files had back in the day to rebuild any of the other images if one were to get lost.

[setr]

> I wonder if you could use this for some kind of "secret" message.

I think you’d just have a worse version of normal steganography methods

[Datagenerator]

Mistaken PAR for RAR? In addition to mostly numbered RAR's archives, the PAR added the safety and recovery layer afiak.

[retpirato]

Somebody is actually working on a language made entirely of emojis called "emojilang, so this could be a way to write a secret message.

[Aardwolf]

Not a new idea for programming languages: https://esolangs.org/wiki/Emoji

[quackduck]

emojicode exists

[caramellow]

woah yeah maybe

[thanatos519]

So ... like https://github.com/schani/metapixel or any other photomosaic program, but only one tile per pixel?

*photomosaic is a trademark of Rob Silvers.

[caramellow]

I was not aware of those when I started making this!

[ZeroGravitas]

Feels like a good match for rust's 'fearless concurrency'.

With the large number of emojis available, do you still get decent results if you don't use any single emoji twice?

[caramellow]

yeah this can handle several thousands of images in the palette

[tejado]

Or encode any data into emojis: https://github.com/tejado/BaseEmoji

[caramellow]

It's not about encoding, moreso about mapping pixels to a palette, but thats pretty neat too :3

[bckr]

Hey thanks for this. Even though I don't completely understand it, it's inspired me to find something fun and smallish to create :)

[pilaf]

I feel there's a lost opportunity in not naming this project Emosaic or even Mojaic.

[caramellow]

Well it's not entirely oriented towards emojis. You can use any image palette to your hearts desire!

[marginalia_nu]

I think Floyd-Steinberg could probably allow you to have multiple pixels per emoji.

[runiq]

You have some conflict markers in your README :)

[caramellow]

Oh wow I forgot about those! Thanks haha

[quackduck]

Lol I love this