RGB K-D Tree (2016)

https://allrgb.com/kd-tree

by hyperific • 2 years ago

53 14 2 years ago

allrgb.com

LordNibbler• 2 years ago

https://allrgb.com/radiator does something weird to my display, the lines extend beyond the window

magicalhippo2• 2 years ago

Yeah same here. Had it with other "pulse trains" or similar harsh repetitive structures.

Guessing it's some resonances in the cable or so?

sgtnoodle• 2 years ago

I believe it's typically a resonance in a power supply / voltage regulator.

TehCorwiz2• 2 years ago

Yeah, I get weird horizontal lines that follow the image but extend to the edges of the screen. Since it extends to both sides it doesn't feel like a panel artifact, but a processing one.

jey• 2 years ago

These are impressive, I wonder how he computes them: https://allrgb.com/al-zimmermann

haneefmubarak• 2 years ago

According to the user on that site "alzayani":

sort an array of all 16777216 image positions (x,y) randomly

loop the positions array and for each position:

read the pixel color at the position as a reference

sample N random colors from the available colors list

for each sample calculate the hypotenuse from the reference color Math.hypot(R - r, G - g, B - b).

find the nearst color, use it for that position in the output image update the list of avalible colors (for practicality in chunks)

willvarfar• 2 years ago

Wait, is that the Al Zimmermann, who runs the massive recreational math programming contests http://azspcs.com/?

Without looking into what these images actually are and how they are generated, they remind me of mosaics I've made of hobby game contests https://williame.github.io/media/old/143376853353_1.jpg using https://en.wikipedia.org/wiki/Hungarian_algorithm, except _better_.

TehCorwiz2• 2 years ago

Wow, that's some impressive dithering. No lie, the "grayscale" images are the most impressive to me. Reminds me of color half-tone printing and film grain.

I wonder what videos games look like in this visual interpretation. I want this as a shader.

ChrisArchitect• 2 years ago

FYI:

This project site is a gallery of images created using one pixel for every RGB color (all 16,777,216 of them, no duplicates)

notfish• 2 years ago

Oh wow, I make those too using a similar technique:

https://tim.fish/assets/images/omni/drip.png https://tim.fish/assets/images/omni/splut.png

The code is here if you’re in the mood to be morbidly fascinated by my hacky python https://github.com/TimEwing/omni

Worth noting mine are only 7-bit instead of 8-bit because my poor little lenovo kept running out of ram and crashing.

OnlyMortal• 2 years ago

Can you use a memory mapped file?

zX41ZdbW• 2 years ago

It reminds me of a project I've built recently: https://reversedns.space/

Although it is not guaranteed to contain every RGB color, it is very likely.

hoseja• 2 years ago

Why is "random RGB" instantly recognizable by the weirdly large/disproportionately noticeable amount of "random RGB purple" (#C31BEE for example)?

RGB K-D Tree (2016)

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