Does anyone remember a blog post on how repeated sharpening and blurring results in reaction diffusion Turing patterns. That blog also had an article on sub pixel shift.

Trying frantically to remember and looking for it in my bookmarks but failing miserably. If anyone remembers what blog I am talking about please leave a link.

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boobsbr 11 hours ago | parent [-]

Maybe these?

https://patorjk.com/blog/2025/11/02/what-happens-if-you-blur...

https://patorjk.com/blog/2025/03/10/making-a-follow-up-to-su...

https://relativisticobserver.blogspot.com/2012/02/keeping-it...

	▲	srean 11 hours ago \| parent [-]
		Hey thanks a bunch. These were not the ones though. The blog was more mathy and had a signal processing analysis and fixed point analysis of the repeated blue and sharpen phenomena. I had upvoted it on HN either as a post or a comment that had the link. Wish there was an easy way to search through ones own upvoted comments and posts. Thanks again though for trying to help.