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bambaxtoday at 8:23 AM4 repliesview on HN

So the idea behind JPEG is the same as behind MP3: we filter out what we don't perceive.

I wonder if other species would look at our images or listen to our sounds and register with horror all the gaping holes everywhere.


Replies

thih9today at 9:02 AM

About: "I wonder if other species would look at our images or listen to our sounds and register with horror all the gaping holes everywhere.", yes.

In particular, dogs:

> While people have an image frame rate of around 15-20 images per second to make moving pictures appear seamless, canine vision means that dogs need a frame rate of about 70 images per second to perceive a moving image clearly.

> This means that for most of television’s existence – when they are powered by catheode ray tubes – dogs couldn’t recognize themselves reliably on a TV screen, meaning your pups mostly missed out on Wishbone, Eddie from Fraisier and Full House’s Comet.

> With new HDTVs, however, it’s possible that they can recognize other dogs onscreen.

Source: https://dogoday.com/2018/08/30/dog-vision-can-allow-recogniz...

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masklinntoday at 8:36 AM

Gaping holes seems unlikely, more loss of detail or shifted colors.

You can experience something like that by using plugins which simulate CVD / color blindnesses.

Simran-Btoday at 8:38 AM

My dog doesn't react to familiar voices over the phone at all. The compression and reproduction of audio, while fine for humans, definitely doesn't work for her animal ears.

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AloysisFrancistoday at 9:16 AM

thanks for sharing informaion