What does UHD mean upscaling on TV?
UHD Upscaling is a marketing name used by Samsung.
It simply means that your TV can zoom in to 4K resolution. Video can be obtained from various sources such as HDMI or digital tuner. Video can be in Full HD resolution and if your TV can’t zoom in, the image will only be shown on part of the screen, this is of course inconvenient, for comfortable viewing the video should be shown on the whole screen.
What is special about UHD Upscaling
There is nothing special about it, any computer or smartphone does the image scaling. But different algorithms can be applied to zoom. Some algorithms work quickly but with reduced quality. For more powerful devices, more complex algorithms are used, they provide better quality zoom.
The zoom function has any smartphone or computer.
Does the image become better when zooming?
It depends on what, if you scale for example SD to UHD, given the small number of pixels the image will be of poor quality, there is simply not enough pixels to improve the image. Scaling Full HD to UHD is quite different, in this case pixels are enough and the image will be more detailed.
How UHD Upscaling works
If the TV is receiving a lower resolution image than UHD. The operating system of the TV set includes a subroutine of image scaling. The image is stretched to the maximum screen size.
