3840*1080 is 4K resolution. 3840*1080 resolution means that the number of horizontal pixels is 3840 and the number of vertical pixels is 1080, while 4K resolution means that the pixel value of each row in the horizontal direction reaches or is close to 4096; 3840*1080 belongs to 4K resolution and is a 2K projector And 4 times the resolution of high-definition TV, it belongs to ultra-high definition resolution.
The operating environment of this tutorial: Windows 7 system, Dell G3 computer.
3840*1080 resolution means that the number of horizontal pixels is 3840 and the number of vertical pixels is 1080. 3840*1080 is 4K resolution.
4K resolution refers to 4096 pixels per line in the horizontal direction, which is 4096*2160 resolution in most cases. 3840*1080 is a 4K resolution, which is 4 times the resolution of 2K projectors and HD TVs, and is an ultra-high definition resolution.
4K resolution is an ultra-high definition resolution. At this resolution, viewers will be able to clearly see every detail and every close-up in the picture. If the theater adopts 4096×2160 resolution, the audience can clearly see every detail of the picture no matter where they are in the theater.
4K resolution means that the pixel value per row in the horizontal direction reaches or is close to 4096, regardless of the aspect ratio. Depending on the scope of use, 4K resolution also has various derivative resolutions, such as Full Aperture 4K’s 4096×3112, Academy 4K’s 3656×2664, and UHDTV standard 3840×2160, etc., all of which are 4K resolutions. category.
4K, the resolution standard for a new generation of Hollywood blockbusters. It is different from the so-called high-definition TV (1920×1080 resolution) we watch at home, and also different from the 2K resolution large screen (2048×1080 resolution) of traditional digital cinema, but an ultra-high definition TV with 4096×2160 resolution. Detailed picture. A traditional high-definition TV has a 2.07-million-pixel picture, while in a traditional digital cinema you can see a 2.21-million-pixel picture. In a theater with a resolution of 4096×2160, you can see a high-definition picture of 8.85 million pixels.
In the field of digital technology, binary operations are usually used, and the size of a digital image is described by the pixels that make up the image. Due to the huge number of pixels that make up a digital image, it is usually represented by K. The 10th power of 2 is 1024, so: 1K=2^10=1024, 2K=2^11=2048, 4K=2^12=4096.
The way to define how many K a video has is: how many 1024 horizontal pixels there are. When the resolution is 2048×1080, 2048 represents the number of pixels in the horizontal direction, and 1080 represents the number of pixels in the vertical direction; similarly, when the resolution is 4096×2160, 4096 represents the number of pixels in the horizontal direction, and 2160 represents the number of vertical pixels. The number of pixels in the direction. In actual digital mastering and digital projection, the number of pixels in the horizontal or vertical direction of the image needs to be adjusted according to different aspect ratios. Therefore, a resolution close to 8847360 pixels of a 4K image can also be called 4K. For example, the common 3840×2160 resolution on the market can also be called 4K resolution. The standard 4K resolution is exactly 4 times the number of pixels of the 2K resolution of 2048×1080, and 16 times the number of pixels of the 1K resolution of 1024×540.
4K ultra-high-definition digital movies refer to digital movies with a resolution of 4096×2160 and 4000 pixels in the horizontal direction. It is the highest resolution digital movie. Most digital movies in China are 2K with a resolution of 2048×1080, some digital movies are 1.3k (1280×1024), and so-called rural movie screenings are 0.8k (1024×768). Real 4K movies are shot with 4K cameras and projected with 4K projectors. Other 4K movies are shot on 35mm film and then converted to 4K digital format. Since the resolution of the film is roughly equal to or slightly higher than 4K, the clarity of the film is also guaranteed after dubbing. For mainstream home appliance manufacturers, they prefer to produce Quad Full HD (3840) close to 4K×2160, because the standard display ratio of this resolution is 16:9, which is close to the viewing ratio currently accepted by consumers.
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