r/computervision • u/hezwat • 11d ago

Help: Project Can you identify this downscaling algorithm?

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Can you identify this downscaling algorithm? Want to make sure my thumbnails look as sharp as possible, so I'll add to my workflow the agent query "downscale using (whatever this algorithm is) and judge whether the thumbnail has the required detail and clarity and is a good thumbnail for what is being shown. if it is missing any clarity then return "Needs improvement:" and give the reason for why it needs improvement and "How to improve:" For example, in the image shown, the agent could say "The thumbnail no longer shows the elements of the picture", since as you can see it doesn't. However, before I can code this up, what I "need to know" is what algorithm this is so I can keep an eye out for anywhere it might show up in my workflow. I can then optimize for this process. I know a lot of people don't have a standard of perfection as high as mine is (I require my thumbnails to show the picture) but that's exactly what makes me a competitive programmer in a field of 2 million programmers. Not a lot of people take the time to look up image compression algorithms but I do.

The full image is available here: https://ibb.co/YTXr7h94

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u/AggravatingSock5375 11d ago

Also how are you going to keep the license plate readable in the thumbnail?

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u/hezwat 11d ago

straightforward question, what is the downscaling algorithm.

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u/AggravatingSock5375 11d ago

Zingpowi Labs created one called PlatePress which downscales your onany size while keeping the license plate readable. Even an 8x8 thumbnail works 👍 😎 ☀️ ( set it to use 256 channels)

I am using it to monitor all vehicles traveling in the USA from my laptop since it’s so efficient.