Chroma subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage of the human visual system's lower acuity for color differences than for luminance.[1]
It is used in many video and still image encoding schemes – both analog and digital – including in JPEG encoding.
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S. Winkler, C. J. van den Branden Lambrecht, and M. Kunt (2001). "Vision and Video: Models and Applications". In Christian J. van den Branden Lambrecht (ed.). Vision models and applications to image and video processing. Springer. p. 209. ISBN 978-0-7923-7422-0.{{cite book}}: CS1 maint: multiple names: authors list (link)
and 21 Related for: Chroma subsampling information
Chromasubsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information, taking advantage...
signal processing Chromasubsampling Sub-sampling (chemistry) This disambiguation page lists articles associated with the title Subsampling. If an internal...
as mobile phones store video footage in Y′CBCR format with 4:2:0 chromasubsampling, which records color information at only one quarter the resolution...
bandwidth of a modulated color subcarrier, and in digital systems by chromasubsampling. The idea of transmitting a color television signal with distinct...
LTOs). Most digital cinematography systems further reduce data rate by subsampling color information. Because the human visual system is much more sensitive...
in a very similar manner. After subsampling, each channel must be split into 8×8 blocks. Depending on chromasubsampling, this yields Minimum Coded Unit...
4:2:0 chromasubsampling (as noted) is used This format can only be achieved if DSC is used together with either YCbCr 4:2:2 or 4:2:0 chromasubsampling (as...
way to reduce the amount of data required in digital video is by chromasubsampling (e.g., 4:4:4, 4:2:2, etc.). Because the human eye is less sensitive...
(scaling down), such as chromasubsampling in JPEG's gamma-enabled Y′CbCr. WebP solves this problem by calculating the chroma averages in linear space...
XAVC recording format can record 4K resolution at 60 fps with 4:2:2 chromasubsampling at 600 Mbit/s. A 128 Gigabyte SxS PRO+ media card can record up to...
data rates and different resolutions. All ProRes422-variants use chromasubsampling of 4:2:2 at 10-bit color depth. ProRes 4444 and 4444 XQ samples color...
SMPTE 424M and EBU Tech 3299 require YCbCr color space and 4:2:2 chromasubsampling for transmitting 1080p50 (nominally 2.08 Gbit/s) and 1080p60 signal...
specific of digital signals, like checking for error correction, chromasubsampling, aspect ratio signaling, surround sound, etc. More recently, the use...
important, from the chroma signal, which is less perceptually important and which can be represented at lower resolution using chromasubsampling to achieve more...
4:1:1 or 4:2:0 chromasubsampling for coding. It gives better chroma resolution and allows certain postproduction processes such as Chroma-key. This format...
by Mary J. Blige released in 1992 The 411, British R&B group 4:1:1 chromasubsampling Volkswagen 411, a car from the late 1960s Bristol 411, a high-performance...
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