Hacker News

If you enjoyed this post you may also like the 2024 book foundations of computer vision: https://visionbook.mit.edu/

prior hn thread: https://news.ycombinator.com/item?id=44281506

i don't have any background in computer vision but enjoyed how the introductory chapter gets right into it illustrating how to build a limited but working simple vision system

It may come as a surprise to some that a lot of industrial computer vision is done in grayscale. In a lot of industrial CV tasks, the only things that matter are cost, speed, and dynamic range. Every approach we have to making color images compromises on one of those three characteristics.

I think this kind of thing might have real, practical use cases in industry if it's fast enough.

For those who don't know, the author is a very prolific dev:

https://github.com/zserge?tab=repositories&q=&type=&language...

Appreciate the old school non-AI approach.

Really enjoyed this article, thanks for sharing!

I had recently learned about using image pyramids[1] in conjunction with template matching algorithms like SAD to do simple and efficient object recognition, it was quite fun.

1: https://en.wikipedia.org/wiki/Pyramid_%28image_processing%29

I was working on a image editor on the browser, https://victorribeiro.com/customFilter

Right now the neat future it have is the ability of running custom filters of varied window size of images, and use custom formulas to blend several images

I don't have a tutorial at hand on how to use it, but I have a YouTube video where I show some of its features

https://youtube.com/playlist?list=PL3pnEx5_eGm9rVr1_u1Hm_LK6...

Referencing "By the power of Grayskull!"

I’m not a “C” person but I’ve really enjoyed reading this, it’s quite approachable and well written. Thank you for writing it.

Didn't recognize George Smiley in those photos. Which makes sense, given he's an espiocrat.

From a 70s kid to an 80s kid, well done!

Quality He-Man reference.