Why do 4K videos on 1080p monitor look better than 1080p videos on 1080p monitor? The monitor displays the same amount of pixels in both cases, doesn’t it?
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As we need a lot of images to make a video, we try to find clever ways to reduce the amount of data needed for each image. One of those ways consists of storing color info for a subset of pixels. For example, if those 4 pixels are each some kind of reddish tint, let’s say it’s red for the 4 pixels, it will be easier to store.
We do the same thing for 1080p and 4k video. But if we display a 4k video on a 1080p monitor, suddenly those 4 pixels are displayed with the size of only 1. So it’s not grouping pixels anymore. In a way, 4k on a 1080p monitor would be like an excellent encoding of 1080p video where we would store the color value independently for each pixel (we do that on a pro level, but that’s not usually what we see on tv)
The quality of a video is determined by the bitrate (how many bits per second of video) and the number of pixels
When you stream play a 1080p video, it compresses the video. When you play a bluray at 1080p it is also compressed but has a much higher bitrate so even though both are 1080p, the bluray will be better quality
when you stream a 4k video, the number of pixels is higher so it needs a higher bitrate to keep it an acceptable quality. You are still only displaying 1920*1080 pixels but because the bitrate is higher, it will generally look better
The quality of a video is determined by the bitrate (how many bits per second of video) and the number of pixels
When you stream play a 1080p video, it compresses the video. When you play a bluray at 1080p it is also compressed but has a much higher bitrate so even though both are 1080p, the bluray will be better quality
when you stream a 4k video, the number of pixels is higher so it needs a higher bitrate to keep it an acceptable quality. You are still only displaying 1920*1080 pixels but because the bitrate is higher, it will generally look better
When you put 3840X2160 people on a 1920×1080 field, there is congestion in the field. To put this in terms of pixels, you get density. This density makes the image look better on a 1080p screen because at the end of the day there is more data on the screen.
When you put 3840X2160 people on a 1920×1080 field, there is congestion in the field. To put this in terms of pixels, you get density. This density makes the image look better on a 1080p screen because at the end of the day there is more data on the screen.
There is a concept called “supersampling” which is where you have more pixel information then the display can handle, which means there is actually more “data” in each pixel than the native version. This is why a lot of games these days allow you to run higher resolutions on lower res screens. You get a better picture.
In the case of TV shows and streaming videos, 4K not only has more information in the picture, but will often come at higher bandwidth and other things like HDR.
Think about it this way: it’s just like re-sizing a picture. A low res picture, upscaled to your screen, looks bad. A picture at the same resolution looks fine. A super high resolution picture, scaled DOWN for your screen, looks awesome.
Same concept with games.
There is a concept called “supersampling” which is where you have more pixel information then the display can handle, which means there is actually more “data” in each pixel than the native version. This is why a lot of games these days allow you to run higher resolutions on lower res screens. You get a better picture.
In the case of TV shows and streaming videos, 4K not only has more information in the picture, but will often come at higher bandwidth and other things like HDR.
Think about it this way: it’s just like re-sizing a picture. A low res picture, upscaled to your screen, looks bad. A picture at the same resolution looks fine. A super high resolution picture, scaled DOWN for your screen, looks awesome.
Same concept with games.
It’s a bit rate thing. At least in the context of youtube, I’m not sure how other sites work
There is a concept called “supersampling” which is where you have more pixel information then the display can handle, which means there is actually more “data” in each pixel than the native version. This is why a lot of games these days allow you to run higher resolutions on lower res screens. You get a better picture.
In the case of TV shows and streaming videos, 4K not only has more information in the picture, but will often come at higher bandwidth and other things like HDR.
Think about it this way: it’s just like re-sizing a picture. A low res picture, upscaled to your screen, looks bad. A picture at the same resolution looks fine. A super high resolution picture, scaled DOWN for your screen, looks awesome.
Same concept with games.
It’s a bit rate thing. At least in the context of youtube, I’m not sure how other sites work
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