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The term "4K" is generic and refers to any resolution with a horizontal pixel count of approximately 4,000. [4]: 2 Several different 4K resolutions have been standardized by various organizations. The terms "4K" and "Ultra HD" are used more widely in marketing than "2160p".
Image resolution is the level of detail of an image. The term applies to digital images, film images, and other types of images. "Higher resolution" means more image detail. Image resolution can be measured in various ways. Resolution quantifies how close lines can be to each other and still be visibly resolved. Resolution units can be tied to ...
The resolution 3840 × 2160, sometimes referred to as 4K UHD or 4K × 2K, has a 16:9 aspect ratio and 8,294,400 pixels. It is double the size of Full HD ( 1920 × 1080 ) in both dimensions for a total of four times as many pixels, and triple the size of HD ( 1280 × 720 ) in both dimensions for a total of nine times as many pixels.
The online dictionary explains that “4k” number “Refers to 4,000 pixel resolution, a very high resolution for video and digital photography that results in clear images.”
4K resolution, a collective term for digital video formats having a horizontal resolution of approximately 4,000 pixels 4K UHDTV, an ultra-high-definition television format; 4K, the IATA airline code for Askari Aviation; 4K, an alternative name for Cuatro Cabezas (Four Heads), an Argentine multimedia production company. 4K, model of Toyota K engine
The pixel count of an image is related to its spatial resolution and is often used as a figure of merit. The quantity of picture elements in the image sensor is usually counted in millions and called "megapixels". [3] Sensor pixel density sets a limit on the final output resolution of images captured with that sensor. [4]
Also may mean "Perspective Control" for a lens that has the ability to shift to tilt to control linear perspective in an image. May also stand for personal computer in conjunction with digital photography. PDAF: Phase-detection autofocus. One of the mechanisms of automatic lens focusing. PF: Purple fringing. A form of chromatic aberration in ...
The X Support account made several posts in March 2021, informing users how they could share and download photos with a 4K resolution as part of a test for Android and iOS devices. The function is ...