Как устроен формат JPEG?

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In internet,in camera,in your smartphone every images are saved in JPEG format. It can compress file sizes 20-30 times!
But how its works is this a magic? How its can reduce file like this and not lose quality? How JPEG works?

Another materials:
How mp3 works: Как устроен формат mp3?
More about JPEG:  https://habrahabr.ru/post/206264/

Enjoy the video :)

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• #mp3
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