Morty

#quietpedo

D, as all numbers in a are multiples of 3, +1

Bruce Lee, converted to the c64 palette, using Composite

Composite v2 is coming up, just have a few more features to get in before release. 320x200, #c64 palette test:

Another trip around the sun. A few more gray hairs. I try to keep it secret, but thanks anyways.

B, as 4 (and 0) will not print

Mars has no magnetic field, and will not sustain an atmosphere, or oceans, or protect inhabitants from radiation. It's uninhabitable and terraforming it is unrealistic. We can fly a couple of astronauts there, and it would be quite an achievement, but humanity isn’t colonising Mars any time soon.

So impressive. Is he on BlueSky?

Agree it looks very converted. It's also a difficult image and palette to work with :) Removing a bit of gray:

I think it's 'error diffusion' used in some dithering algorithms, where conversion error is compensated for in neighbour pixels. At a distance where pixels become a blur, it might work. It's not implemented in Composite, because as you say, generally it just looks crap :)

Interesting, so you prep the image before converting it, by limiting it to use only available solid+mixed colors. I took a quick stab at the same image in Composite, using the CGA palette, no prep, just the true color image as input:

This game puts things into perspective

pipe smoking rasta guy, #c64 #pixelart style graphics, converted with Composite

Happy Sunday, 320x200 #c64 palette, Composite test:

I’m thinking scarier than that :)

This year for Halloween, I want to scare the kids good. Any suggestions? 🎃

that's a big robot

Yes lines and outlines, especially in small sprite size graphics, is something humans are better at. I’ve been looking into how to add or preserve outlines, but it seems quite difficult

I use k-means clustering on the uv coordinates of the colors, and sort each group by luma, and the user inputs number of groups with a slider. One small problem is two ramps can’t share eg black or white at the ends

agree, the dithering technique is often easy to identify as either human made or algorithm based. I also find conversions (without post touch up) often have stray pixels, or salt and pepper noise, that a human would not have thought to put there

Portrait of a guy wearing goggles, pixelart style, 16 colors, Lexica.art

16 colors, 128x128, 12bit rgb:

Question: What details makes pixel graphics look ‘converted’ vs ‘hand pixelled’? I know Floyd–Steinberg dithering, Ordered 4x4 dithering, etc, will give it away, but what other details do you pick up on?

Using color ramps for dithering, i.e. only neighbour colors in the (color grouped) palette can mix:

16 colors, 12bit RGB, pixelart style conversion using Composite

Using the k-means clustering algorithm to find a palette from an image, and then, using k-means clustering again on the palette grouping the colors into color ramps:

Today, the strangest thing happened. Xcode predictive code completion actually suggested some code (one line, but still) that actually really worked! :)

Control 1 and 2 controls a dynamically generated threshold matrix for dithering, so you can dial in the amount of dithering and the pattern of it. It’s very useful, but I couldn’t find better names :)

Oh looks cool, did you try it?

Portrait of girl, pixelart style, 16 color palette, Composite for Mac

Testing out a new idea for determining which colors in a palette can be mixed in dithering, looking a distance in luma (Y) and chroma (UV) individually. Just research for now. 128x128, 12bit RGB, 16 colors.

I'm normally quite enthusiastic about #Apple products, but #iOS26 and liquid glass, not so much..

I need this controller for GTA Vice City :)

I ordered the beige one :)

For my birthday in November, will the c64 Ultimate be a good present to myself?