How to make HD look like 4K

According to David Shapton, HD can look like 4K if you make it the right way, and if you realise that 4K actually isn’t that big a step up…

I think people who make videos and films are sometimes a little unclear about the relationship between 4K and HD. It’s something we’ve already touched on in RedShark. The most important message is this: that 4K is four times the data rate of HD, and you’ll need four times the space to see it.

But while there are four times as many pixels as HD, but the picture is not four times better. It’s actually only twice as good, if you measure the “goodness” of a picture by the number of pixels in a straight line.

Just to be completely clear about this, 4K has only twice the linear resolution of HD. This has some very important consequences.

Perhaps the most important of which is that if you degrade the sharpness of a 4K image by as little as just over half a pixel, you might as well have started in HD.

Half a pixel! That’s one eight thousandth of the width of the screen. You do’t have to have much wrong with your picture to lose its 4K-ness in an instant.

Remember that when we judge the sharpness of a picture, we’re not actually measuring it. What we’re absolutely not doing is counting pixels and how they merge with their neighbours. We base our impressions of sharpness on – impressions. We can be fooled into thinking that a picture is sharper than it is.

RedShark News | Read the Full Article

How to make HD look like 4K

RedShark News | Read the Full Article

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