They are technically just stretching the video right? Where do the additional information for the new pixels come from? Does it cost a lot? What’s the simplest way to restore similar home videos to 4k crisp quality, can it even be done by a regular guy on a home computer?
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They’re not really stretching it. It’s called upscaling where they use programs and AIs to create a new approximation of what the new resolution will be. It’s kind of like painting in the gaps. You can do upscaling yourself at home depending on how good your computer is and how much RAM you have you can use things like Topaz AI
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