I wanted to learn a bit more about that algo, so https://atkinson.franzai.com/ - I double checked through some AIs so I hope it is factually correct.
Convert photos to Atkinson dithering
41–50 of 61 posts
Re: Convert photos to Atkinson dithering
#42Still my favorite B&W dither algorithm. The university had a B&W flatbed scanner attached to a Mac running ... a Hypercard stack? that allowed you to scan an image and get a B&W image. A clipart book I picked up from the college bookstore and a quick scan and I had a "logo" for the Mac shareware games I started writing in 1988 or so. At the time I didn't;t realize how really ... nice .. Atkinson's algorithm is. But w…
That is honestly beautiful! Is there a place where I could see some of Bill's code? I would like to perhaps play around w it on my own time and learn a thing or two!
Re: Convert photos to Atkinson dithering
#43Thanks I tried a bunch of my favorite photos in this too.
Re: Convert photos to Atkinson dithering
#44This implementation is great and the interface brings back memories. I was wondering why my Atkinson dithering web-component[0] was getting more hits today - sad news. I’ve always thought that Atkinson dithering produces the nicest images on really crisp monitors like the original Mac - something about it just looks cool and 80s which is why I used it in a game last year. [0] https://sheep.horse/2023/1/improved_web_c…
Dithering at the pixel level on a retina screen is quite something. I quite like the style on some pictures, not so on others. They have a weird modern old-fashioned look and the individual dots are not as distracting as in actually old pictures.
Re: Convert photos to Atkinson dithering
#45Sorry but where did you get the JS/CSS for this? It's so small.
Believe it or not, you can write both CSS and JS by hand.
Re: Convert photos to Atkinson dithering
#46Re: Convert photos to Atkinson dithering
#47Why not Sierra? https://tannerhelland.com/2012/12/28/dithering-eleven-algori...
I guess it was originally nostalgia for early Mac, and resurfaced because Bill Atkinson had just died.
Re: Convert photos to Atkinson dithering
#48Earlier quoted context omitted.
Oh, I assumed it had been recently built and probably posted today by its author given the news and the lack of a year in the title. I'll open a PR. edit: I might open a PR. 'CoffeeScript...now there's a name I've not heard in a long time. A long time...'
CoffeScript? This is the kind of task where a coding agent should be helpful.
For a tiny PR where 90% of the complexity will most likely be resurrecting an ancient toolchain?
Re: Convert photos to Atkinson dithering
#49Earlier quoted context omitted.
Yes, he invented* the algorithm. One assumes it must be. * Corrected from 'discovered;' see below.
Invented the algorithm. The choice and arrangement of weights is a matter of fine-tuning to balance practical concerns - not some natural law of mathematics that could be figured out.
The algorithm, including the precious weights, can exist outside our universe. It doesn’t need matter, it only needs maths.
Discovered is correct.