The 24 refers to the true frame rate of film-based content, and displaying it in its native format is supposed to give you a picture exactly as the director intended you to see it. Whether you're dealing with p24 or video-based p50 doesn't alter our overall views about p TVs.
We still believe that when you're dealing with TVs 50 inches and smaller, the added resolution has only a very minor impact on picture quality. In our tests, we put p next to p sets, then feed them both the same source material from high-end Blu-ray players.
We typically watch both sets for a while, with eyes darting back and forth between the two to look for differences in the most-detailed sections such as hair, textures of fabric, and grassy plains. Bottom line: it's almost always very difficult to see any difference — especially from farther than 2m away on a inch TV.
The fact is, resolution is resolution, and whether you're looking at a Sony or a TCL, p resolution which relates to picture sharpness is the same and is a separate issue from black levels and colour accuracy.
Katzmaier also adds that the main real-world advantage of p is not the extra sharpness you'll be seeing, but instead the smaller, more densely packed pixels. In other words, you can sit closer to a p television and not notice any pixel structure such as stair-stepping along diagonal lines or the screen-door effect where you can actually see the space between the pixels. This advantage applies regardless of the quality of the source.
Should I save some dough and opt for a p TV? If you're just making the leap to HDTV and find the higher-end sets out of your price range, you shouldn't feel bad about going with an entry-level p model just getting HD programming is going to make a huge difference. Also, in a lot of cases, folks are looking at p TVs as second sets for bedrooms or playrooms, and in a tough economy, a few hundred bucks make a big difference. Finally, it's a good idea to go with p instead of p if you plan to use your TV a lot as a big computer monitor.
That said, if you set your computer to output at x, you might find that the icons and text on the screen are too small to view from far away as a result, you may end up zooming the desktop or even changing to a lower resolution. But a p set does give you some added flexibility and sharpness when it comes to computer connectivity. If none of those factors jump out at you as true priorities — and you're working on a tight budget and want to save some dough — a p set is going to do you just fine.
HD will still look great on your set, I swear. Be respectful, keep it civil and stay on topic. This factor of both the horizontal and vertical sets of pixels denotes the total number of pixels that are displayed by the screen, as an image or video is being played.
In p screens, there are a total of X pixels. This means that as the screen is operating, a total of pixels are displayed across the screen horizontally and pixels are displayed down vertically on the screen. This arrangement of pixels is usually used in the case of high resolution, wide screens as there are more pixels present on the horizontal and vertical sections, as compared to previous versions of screens, namely p and p.
The typical aspect ratio of such screens is , although lately smaller screens have also been designed with the p arrangement. As there are more pixels on the screen, more areas of an image can be covered. This results in a crisp, clean, and crystal clear display of the image. Hence these screens are marketed as Full HD screens, to emphasize the higher definition clarity of the screens.
Increasing bitrate and resolution Here's a comparison of the same region cropped from both frames after scaling to p frame Notice rug's edge and the cable: Frame Very high bitrate Noah asked a good question in the comments: will both images look identical with high enough bitrate?
Hair looks a bit sharper in p. The cheek is way closer to original on p half, because scaling smoothed out skin details on the right half. Ear's edge isn't that close to uncompressed pixels, but it's better in p. Again, artifacts are visible on p half - they would appear on unresized p too, but scaling smoothed them out with quite good results.
Hair seems to be better on p because it's closed to black, but in reality it looks like random noise. It's probably the magic of scaling again: the "noise" increases when scaling, but it also starts to make sense.
Disclaimer This test is purely synthetic and doesn't prove that real-life p video looks better than p when played on smaller screen. What's the difference between this artificial test and real-life video? Proportional increase in bitrate will provide much better results, even if lower resolution matches what screen uses, but it's unlikely to be used in real life.
I went with 1-pass constant bitrate CBR , hoping that it will make all unpleasant compression side-effects more obvious. Different codecs can react in different ways. This test was conducted using popular h. Downloads: Frame p k p k p k p k p k p k p k p k p uncompressed Frame p k p k p k p k p k p k p k p k p uncompressed Frame p k p k p k p k p k p k p k p k p uncompressed. Improve this answer.
Community Bot 1. Raestloz For uncompressed video or lossless codecs that's true, but lossy compression creates those square blocks I talk about, which actually act like big pixels. Scaling p video down to p will make them smaller than in actual p video. Raestloz I've added synthetic tests with my interpretation of results. I see a lot of wrong when it comes to answering questions like this, but your answer is excellent.
Of some note is that lossy compression does not always create "blocks" -- the exact artifacting depends on many factors, but based the knowledge shown in your answer, I figure this was an intentional simplification for clarity. Playing p video alone is already more demanding and scaling to p adds even more computational overhead.
I'm not absolutely sure about that, though. Your bitrates are not even remotely proportional or realistic. Basically you have fabricated evidence adding an artificial ceiling on the p quality to support your original false assumption.
Show 11 more comments. It depends heavily on the media. Show people the same image and say one is technically better, there will always be people with 'superior eyesight' who claim to see the improvement. These are the same people who can hear the 'clarity' of gold plated digital audio cables. The fact is the scaled down p version will actually be slightly worse than the native p version.
JamesRyan It is much harder to see with a still image than it is with a moving frame. Notice how I said: when things moves. JamesRyan The quality loss of scaling is dwarfed by the quality loss of compression. A p Youtube video use a significantly higher bitrate than a p Youtube video, this result in a higher quality video, regardless of scaling. Ideally you'd use a p video with a high bitrate for p screens, but Youtube don't deliver such videos, so p is the best there is.
If you want to see artefacts I recommend using a Starling video youtube. And then you are throwing the additional information away. JamesRyan There is largely no information in a Youtube p video that has pixel-accuracy in the first place, the colour channel is only half resolution and the whole thing is heavily lossy compressed, the information lost by downscaling is almost purely compression noise.
A good quality DVD on the other hand has a low number of pixels, but a very high quality per pixel, downscaling that would lead to significant quality loss. Show 1 more comment. Caraxian Caraxian 5 5 bronze badges. I'd be really surprised if any decent player would actually cut instead of blend pixels. And you'd need one psychedelic video source to notice distortions of blending.
Johnny Bones Johnny Bones 9 9 bronze badges. Actually, a screen with 40" diagonal will be about So a p video may look better on a p screen, provided that the p is the original version and was not scaled down from p or a higher resolution Scaling down has another advantage that some algorithms may use subpixel rendering which increases the effective resolution a bit In fact scaling up then downs is how may antialiasing algorithms work, and also how fractional dpi scaling works in many OSes like iOS or macOS.
This causes the picture to be sharper. If your internet is good enough, try to always stream your content with this resolution. Sometimes, 4K-resolution is also available, but bear in mind that your device also needs to be able to display it.
When you are buying a new TV, monitor or something similar, try to aim at least to get p. About the author Related posts. Felix Stoll.
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