Good scaling makes 1080p video look good on 4K TV
Though 4K diaplay are everywhere, real 4K contents are not. Almost all the streaming videos, DVDs, TV broadcast, Blu-ray and other available contents today are p, p or even p. How this works? Go check this post. And 4K upscaling means enlarging the P, P or lower-resolution images to near 4K quality to fit the large 4K display.
A Simple Tutorial on How to Upscale 1080p to 4K
The 4K displays will have four times as much the screen space to fill than P. Therefore, if the 4K TV displays a P video without upscaling, the screen will look like below. For lower resolutions, the image will be smaller. To upscale video to 4k quaility, there is a video processing technology called interpolation, a process fo creating new pixel points within the range of a discrete set of known pixel points.
Simply put, as shown in the above picture, it needs to create more pixel pionts to fill the blank area of a 4K dispay. There are several upscaling algorithms to help achieve this.
Here we will introduce you the major consumer-level UHD upscaling algorithms used by 4K TVs, Blu-ray players and other devices: nearest neighbor interpolation, bilinear interpolation and bicubic interpolation. Unlike the two other methods, it determines the new interpolated pixel by the nearest neighbor point in the input vector or matrix without calculating the value via any weighting criteria or complicated rules. It thus has a lot of blurriness and artifacts.
How to Upscale p to 4K in Simple Four Steps - VideoProc
Linear interpolation is implemented in both X and Y directions and Z for 3D. At the very beginning, you need free download the program according to your computer operating system. Step 1: Load p files.
Step 2: Choose an output format. If you have no idea about which format to convert to, you can take 4K TV supported formats as a reference.
4K Converter for Mac
The output video was automatically set to H. Step 3: Upscale p to 4K.
Click on the on the main interface. Step 4: Start the video upconverting process. After the settings done, optionally you can click Browse button to specify a destination folder to save the converted 4K videos. BTW, the same steps go for converting p to p, p to 4K and more.
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Downscale 4K to p with Excellent Quality. MacX Video Converter Pro.
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- What is 4K upscaling?;
- How to Upscale p to 4K in Simple Four Steps - VideoProc.
- A Simple Tutorial on How to Upscale 1080p to 4K.
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- VideoProc for Mac | Yale University | Academic Software Discounts.
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