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Practice of encoding color images
Chroma subsampling or color subsampling is the practice of encoding images by implementing less resolution for chroma information than for luma information
Chroma_subsampling
Topics referred to by the same term
Look up subsampling in Wiktionary, the free dictionary. Subsampling or sub-sampling may refer to: Resampling (alternative to bootstrap) Sampling (statistics)
Subsampling
Lossy compression method for reducing the size of digital images
in a very similar manner. After subsampling, each channel must be split into 8×8 blocks. Depending on chroma subsampling, this yields Minimum Coded Unit
JPEG
Type of multi-scale signal representation
in which a signal or an image is subject to repeated smoothing and subsampling. Pyramid representation is a predecessor to scale-space representation
Pyramid_(image_processing)
Digital audiovisual data interface
using Y′CBCR with 4:2:0 subsampling Possible by using Display Stream Compression (DSC) Possible by using Y′CBCR with 4:2:2 subsampling and DSC together, which
HDMI
Family of statistical methods based on sampling of available data
When both subsampling and the bootstrap are consistent, the bootstrap is typically more accurate. RANSAC is a popular algorithm using subsampling. Jackknifing
Resampling_(statistics)
Bitmap image file format family
equivalent GIF's size. VP9 only supports alpha compositing with 4:2:0 chroma subsampling, which may be unsuitable for GIFs that combine transparency with rasterised
GIF
Colour in an image or video
bandwidth of a modulated color subcarrier, and in digital systems by chroma subsampling. The idea of transmitting a color television signal with distinct luma
Chrominance
Video or display resolutions with a width of around 4,000 pixels
mobile phones store video footage in Y′CBCR format with 4:2:0 chroma subsampling, which records color information at only one quarter the resolution as
4K_resolution
Test signal in television broadcasting
specific of digital signals, like checking for error correction, chroma subsampling, aspect ratio signaling, surround sound, etc. More recently, the use
Test_card
Digital video codecs and tape formats
chroma subsampling is applied to the source video in order to reduce the amount of data to be compressed. Baseline DV uses 4:1:1 subsampling in its 60 Hz
DV_(video_format)
Standard from the International Telecommunication Union
although compressed formats for consumer applications usually use chroma subsampling reduced from the 4:2:2 sampling specified in Rec. 601 to 4:2:0. The standard
Rec._601
Resolution Frame Size Chroma Subsampling Bits Frames Per Second Megabits per second Minutes per Gigabyte Avid DNxHD 440x 1920 x 1080 4:2:2 10 60 440 0
List of Avid DNxHD resolutions
List_of_Avid_DNxHD_resolutions
ITU-R recommendation
HDR-TV such as display resolution (HDTV and UHDTV), frame rate, chroma subsampling, bit depth, color space, color primaries, white point, and transfer function
Rec._2100
Digital display interface
Y′CBCR with 4:2:2 subsampling and DSC together, which permits a lower DSC bit rate of 7 bit/px Possible by using Y′CBCR with 4:2:0 subsampling and DSC together
DisplayPort
Video encoding standard
limitations of such hardware were not defined. Support for only one chroma subsampling, 4:2:0 Sakae Okubo of NTT was the ITU-T coordinator for developing the
MPEG-2
Resampling method
In digital signal processing, downsampling, subsampling, compression, and decimation are terms associated with the process of resampling in a multi-rate
Downsampling (signal processing)
Downsampling_(signal_processing)
2013 open and royalty-free video coding format
chroma subsampling: 4:2:0 profile 1 color depth: 8 bit, chroma subsampling: 4:2:2, 4:2:0, 4:4:4 profile 2 color depth: 10–12 bit, chroma subsampling: 4:2:0
VP9
Digital image capture for film
LTOs). Most digital cinematography systems further reduce data rate by subsampling color information. Because the human visual system is much more sensitive
Digital_cinematography
Fractal analysis technique
Box counting is a method of gathering data for analyzing complex patterns by breaking a dataset, object, image, etc. into smaller and smaller pieces, typically
Box_counting
Digital video coder/decoder
important and which can be represented at lower resolution using chroma subsampling to achieve more efficient data compression. It is common to represent
Video_codec
Convolutional neural network structure
spatial features (Convolution was called receptive fields originally) Subsampling average pooling layer tanh activation function fully connected layers
LeNet
Brightness in an image or video
output of a three-CCD camera) into luma and chroma allows for chroma subsampling: because human vision has finer spatial sensitivity to luminance ("black
Luma_(video)
methods in weather and climate analysis. He has championed the use of subsampling (a non-parametric resampling technique) to derive reliable confidence
Alexander_Gluhovsky
Video compression format, succeeds MPEG-1
HD422. MPEG IMX and MPEG HD422 employ 4:2:2 color subsampling, MPEG HD employs 4:2:0 color subsampling. Most subformats use selectable constant video data
H.262/MPEG-2_Part_2
Mathematical color model
all modern analogue and even most digital video standards use chroma subsampling by recording a picture's color information at reduced resolution. Only
Y′UV
used to achieve stereoscopic video: Color shifting (anaglyph) Pixel subsampling (side-by-side, checkerboard, quincunx) Enhanced video stream coding (2D+Delta
Stereoscopic_video_coding
assignment Randomization Restricted randomization Replication versus subsampling Sample size Treatment and blocking Treatment Effect size Contrast Interaction
Bose–Mesner_algebra
Feature of GPUs by Nvidia
compared to previous generation NVENC. It supports HEVC 8K, 4:4:4 chroma subsampling, lossless encoding, and sample adaptive offset (SAO). Nvidia Video Codec
NVENC
Type of feedforward neural network
downsampling operations, spatial transformer networks, data augmentation, subsampling combined with pooling, and capsule neural networks. The accuracy of the
Convolutional_neural_network
Digital camera model
of shooting 4K resolution video with 10-bit color with 4:2:2 chroma subsampling, along with recording in 4K 60p or 50p (but only in 8 bit). It also captures
Panasonic_Lumix_DC-GH5
assignment Randomization Restricted randomization Replication versus subsampling Sample size Treatment and blocking Treatment Effect size Contrast Interaction
Generalized randomized block design
Generalized_randomized_block_design
Video compression method for HDMI and DisplayPort links
DSC 1.2 for video that is higher than 8K resolution with 4:2:0 chroma subsampling. Using DSC with HBR3 transmission rates, DisplayPort 1.4 can support
Display_Stream_Compression
High dynamic range color space
a YCC digital format with support for 4:4:4, 4:2:2 and 4:2:0 chroma subsampling in CTA-861-H (that means that in limited range 10 bit mode 0, 1, 2, 3
ICtCp
Image luminance mapping function
applies to other forms of downsampling (scaling down), such as chroma subsampling in JPEG's gamma-enabled Y′CbCr. WebP solves this problem by calculating
Gamma_correction
Number of bits used to represent a color
standards support a bit depth of 8 bits per color in YCbCr with 4:2:0 chroma subsampling. YCbCr can be losslessly converted to RGB. macOS and Classic Mac OS refer
Color_depth
Technique used in signal processing and data compression
ACELP CELP LAR LSP WLPC MDCT Psychoacoustic model Image Concepts Chroma subsampling Coding tree unit Color space Compression artifact Image resolution Macroblock
Discrete_cosine_transform
Digital optical disc format
allows video with a bit depth of 8-bits per color YCbCr with 4:2:0 chroma subsampling. The choice of formats affects the producer's licensing/royalty costs
Blu-ray
2023 APS-C mirrorless camera
and file size. Recording in colour depth of 10-bits and 4:2:2 chroma subsampling is possible with the XAVC codec. The camera features: all intra‑frame
Sony_α6700
Process of changing one type of television system to another
continuous (or periodic) signal defect that would inhibit translation. The subsampling in a video system is usually expressed as a three-part ratio. The three
Television standards conversion
Television_standards_conversion
Set of techniques for creating images, diagrams, or animations to communicate a message
manipulating the visualization. One common variant of LOD rendering is subsampling. When the information being represented is stored in a topologically
Visualization_(graphics)
Standard format for digital video in teleconferencing
format for the picture resolution, frame rate, color space, and color subsampling of digital video sequences used in video teleconferencing systems. It
Common_Intermediate_Format
feedback system by applying subsampling in order to eliminate a down conversion stage. This reference focuses on the subsampling portion of the system and
Multidimensional digital pre-distortion
Multidimensional_digital_pre-distortion
Statistical theorem in the analysis of variance
assignment Randomization Restricted randomization Replication versus subsampling Sample size Treatment and blocking Treatment Effect size Contrast Interaction
Cochran's_theorem
Smoothing filler for images
efficiently implement a bilateral filter is to exploit Poisson-disk subsampling. OpenCV implements the function: bilateralFilter( source, destination
Bilateral_filter
Commonly used display resolutions
added support for 7680 × 4320 at 30 Hz (or 60 Hz with Y′CBCR 4:2:0 subsampling). VESA's Display Stream Compression (DSC), which was part of early DisplayPort 1
Display_resolution_standards
2021 full-frame mirrorless camera
and file size. Recording in color depth of 10 bits and 4:2:2 chroma subsampling is possible with Sony's XAVC codec. All Intra-frame system that compresses
Sony_α7_IV
Video codec
parallel processing on multi-core CPUs and GPUs High-quality chroma subsampling (4:0:0, 4:2:2, 4:4:4, and 4:4:4:4). Bit depths ranging from 10 to 16
Advanced_Professional_Video
Widely used standard for video compression
Chroma prediction block sizes are correspondingly smaller when chroma subsampling is used. The ability to use multiple motion vectors per macroblock (one
Advanced_Video_Coding
Video compression format
resolution. SStP allows for up to 12-bit bit depth and up to 4:4:4 chroma subsampling, using intra-frame coding only. SStP is used by HDCAM SR. MPEG-4 Part
MPEG-4_Part_2
Family of digital color spaces
information (see image example to the right). This is called chroma subsampling. YCbCr and Y′CbCr are a practical approximation to color processing and
YCbCr
TV resolution standard
and HDV formats introduced by Sony and defined (also as a luminance subsampling matrix) in SMPTE D11. 1080p (Full HD) 1920×1080 1888 × 1062 Clean aperture
High-definition_television
Divide and conquer sorting algorithm
where optimal speed up was achieved, with Richard Cole using a clever subsampling algorithm to ensure O(1) merge. Other sophisticated parallel sorting
Merge_sort
Video compression format
data rates and different resolutions. All ProRes422-variants use chroma subsampling of 4:2:2 at 10-bit color depth. ProRes 4444 and 4444 XQ samples color
Apple_ProRes
Video encoding standard
brightness (the Y component) than in color (the Cr and Cb components), chroma subsampling is a very effective way to reduce the amount of video data that needs
MPEG-1
Loss of quality between copies
JPEG is divided into 16×16 blocks (or 16×8, or 8×8, depending on chroma subsampling), cropping that does not fall on an 8×8 boundary shifts the encoding
Generation_loss
color with 4:2:2 chroma subsampling through their HDMI connections, while only recording 8-bit color with 4:2:0 chroma subsampling internally. Recorder monitors
Camera_monitor
ITU-R recommendation defining UHDTV
sampling and luma-chroma signal formats with 4:2:2 and 4:2:0 chroma subsampling. It supports two types of luma-chroma signals, called YCbCr and YcCbcCrc
Rec._2020
Topics referred to by the same term
color components have the same sampling rate, thus not using chroma subsampling Another name for the RGB color space 444 (disambiguation) 4:44 (disambiguation)
4:4:4
AI Foundation model for tabular data
compared with CatBoost, XGBoost, LightGBM, and TabPFN 2.5 using 50,000-row subsampling. The company stated that predictive performance improved monotonically
TabPFN
Topics referred to by the same term
(information theory) Data conversion Interpolation Multivariate interpolation Subsampling (disambiguation) This disambiguation page lists articles associated with
Resampling
Electronic moving image
to reduce the amount of data required in digital video is by chroma subsampling (e.g., 4:4:4, 4:2:2, etc.). Because the human eye is less sensitive to
Video
Virus that causes COVID-19
PMID 32359479. "Genomic epidemiology of novel coronavirus – Global subsampling". Nextstrain. 25 October 2021. Archived from the original on 20 April
SARS-CoV-2
Processing unit in image and video compression formats
fixed size of 8×8 samples. In the YCbCr color space with 4:2:0 chroma subsampling, a 16×16 macroblock consists of 16×16 luma (Y) samples and 8×8 chroma
Macroblock
Statistical approach
assignment Randomization Restricted randomization Replication versus subsampling Sample size Treatment and blocking Treatment Effect size Contrast Interaction
Response_surface_methodology
HEVC/H.265 encoder
8 bits or 10 bits per sample YCbCr with 4:2:0, 4:2:2 or 4:4:4 chroma subsampling. x265 supports most of the features of x264 including all rate control
X265
Order of marine chelicerates
Gavish-Regev, Efrat; Sharma, Prashant P. (2019-12-18). "Ordered phylogenomic subsampling enables diagnosis of systematic errors in the placement of the enigmatic
Xiphosura
Frequently updated. "Genomic epidemiology of novel coronavirus – Global subsampling (Filtered to B.1.617)". nextstrain.org. Archived from the original on
Variants_of_SARS-CoV-2
Format used to store digital video on DVDs
a bit depth of 8 bits per color, encoded as YCbCr with 4:2:0 chroma subsampling. The following formats are allowed for H.262/MPEG-2 Part 2 video: At
DVD-Video
Components from image source to output
colorspace conversion (between formats such as RGB, YUV or YCbCr), chroma subsampling, framerate conversion, image compression/video compression (such as JPEG)
Color_image_pipeline
Polymorphism of organellar DNA sequences in a cell
represented by blue and yellow. When generated, each oocyte receives a small subsampling of mitochondrial DNA molecules in differing proportions. This is represented
Heteroplasmy
Raster graphics file format
Monochrome (alpha/depth) or multi-components 4:2:0, 4:2:2, 4:4:4 chroma subsampling and RGB Film grain synthesis Image sequences and animation Alpha transparency
AVIF
Memory card format
recording format can record 4K resolution at 60 fps with 4:2:2 chroma subsampling at 600 Mbit/s. A 128 Gigabyte SxS PRO+ media card can record up to 20
SxS
Topics referred to by the same term
Mary J. Blige released in 1992 The 411, British R&B group 4:1:1 chroma subsampling Volkswagen 411, a car from the late 1960s Bristol 411, a high-performance
411
4K and 8K digital video formats
of up to 60 fps with a color depth of up to 12 bpc with 4:2:2 chroma subsampling. Audio output can be up to 7.1 channels. Content is distributed online
Ultra-high-definition television
Ultra-high-definition_television
Color reconstruction algorithm
to the human eye's higher sensitivity to green light. Since the color subsampling of a CFA by its nature results in aliasing, an optical anti-aliasing
Demosaicing
Video mode
SMPTE 424M and EBU Tech 3299 require YCbCr color space and 4:2:2 chroma subsampling for transmitting 1080p50 (nominally 2.08 Gbit/s) and 1080p60 signal.
1080p
Video encoding and decoding hardware by Intel
10-bit decoding and encoding acceleration with 4:2:2 and 4:4:4 chroma subsampling, HDR10 Tone Mapping and Open Source Media Shaders. HEVC hardware encoding
Intel_Quick_Sync_Video
2008 full-frame digital single-lens reflex camera
downsampled to HD resolution by only using every third line and 4:2:0 chroma subsampling, leading to concern about Moiré patterns in recorded video. Video clips
Canon_EOS_5D_Mark_II
Output format of data from digital camera
Color image pipeline Color filter array Bayer filter RGBE filter Chroma subsampling Image sensor format Raw image format "Pixel Format | Basler Product Documentation"
Pixel_format
Video compression format
second (fps). XAVC supports color depths of 8, 10, and 12 bits. Chroma subsampling can be 4:2:0, 4:2:2, or 4:4:4. The Material Exchange Format (MXF) can
XAVC
Variant of SARS-CoV-2 detected late 2020
Retrieved 15 June 2021. "Genomic epidemiology of novel coronavirus - Global subsampling (Filtered to B.1.617)". nextstrain.org. Archived from the original on
SARS-CoV-2_Delta_variant
Class of arthropods
Efrat; Sharma, Prashant P. (18 December 2019). "Ordered phylogenomic subsampling enables diagnosis of systematic errors in the placement of the enigmatic
Arachnid
Camcorder Camera Canopus DVStorm2—real time editing CCIR 601 CCD Chroma subsampling—4:1:0, 4:1:1, 4:2:0, 4:2:2, 4:4:4 Cinematography Clapperboard Closed-captioning
Index of video-related articles
Index_of_video-related_articles
Reduction of image size to save storage and transmission costs
for each block of 4x4 pixels, used in BTC, CCC, S2TC, and S3TC. Chroma subsampling. This takes advantage of the fact that the human eye perceives spatial
Image_compression
1980's high-definition analog broadcast television standard
standards: NICAM-like audio coding is used in the HD-MAC system. Chroma subsampling in TV indicated as 4:2:2, 4:1:1 etc... Pauchon (1992). "Analogue HDTV
HD-MAC
2026 full-frame mirrorless camera
this model offers 8K recording (from 24 to 30 fps) and 4:2:2 chroma subsampling, thanks to the faster sensor readout speed the rolling shutter effect
Sony_α7R_VI
Method of measuring prediction error
learning models utilizing bootstrap aggregating (bagging). Bagging uses subsampling with replacement to create training samples for the model to learn from
Out-of-bag_error
Machine learning technique
training set is used to build each base learner. Also, like in bagging, subsampling allows one to define an out-of-bag error of the prediction performance
Gradient_boosting
Color in digital images
needed] Among other techniques, lossy video compression uses chroma subsampling to reduce the bit depth in color channels (hue and saturation), while
Channel_(digital_image)
Video compression technology
quality with compression ratios up to 4:1. Supports a range of chroma subsampling formats, such as 4:2:2, 4:4:4, and offers 8, 10, or 12 bits flexibility
TICO_(codec)
Transform in numerical harmonic analysis
of the input, so the frequency resolution has been doubled. With the subsampling operator ↓ {\displaystyle \downarrow } ( y ↓ k ) [ n ] = y [ k n ] {\displaystyle
Discrete_wavelet_transform
Class of marine arthropods
Efrat; Sharma, Prashant P. (18 December 2019). "Ordered phylogenomic subsampling enables diagnosis of systematic errors in the placement of the enigmatic
Sea_spider
Nikon media processors
correction image enhancement/Active D-Lighting colorspace conversion chroma subsampling framerate conversion lens distortion/chromatic aberration correction
Expeed
Design of tasks
assignment Randomization Restricted randomization Replication versus subsampling Sample size Treatment and blocking Treatment Effect size Contrast Interaction
Design_of_experiments
Remote desktop software
display protocol to offer full 4:4:4 color in the days before chroma subsampling was a thing and professional CRT monitors provided full RGB color. HP
Remote_Graphics_Software
resolution; this allowed color to be squeezed into the signal by chroma subsampling. Another example is lossy image compression, like JPEG. Our HVS model
Human_visual_system_model
Topics referred to by the same term
in mathematics 420 Bertholda, a main-belt asteroid 4:2:0, a chroma subsampling layout 420 (cannabis culture), informal reference to cannabis use and
420
Order of arachnids known as microwhip scorpions
Gavish-Regev, Efrat; Sharma, Prashant P. (2019). "Ordered phylogenomic subsampling enables diagnosis of systematic errors in the placement of the enigmatic
Palpigradi
File format for block-based Gzip compression
ACELP CELP LAR LSP WLPC MDCT Psychoacoustic model Image Concepts Chroma subsampling Coding tree unit Color space Compression artifact Image resolution Macroblock
BGZF
SUBSAMPLING
SUBSAMPLING
SUBSAMPLING
SUBSAMPLING
Girl/Female
Hindu
Goddess Durga
Boy/Male
Arabic, Hindu, Indian, Muslim
Sprout; Shoot; Young Bird
Girl/Female
Hindu, Indian, Kannada, Malayalam, Marathi, Sanskrit, Tamil
Satisfaction; Happiness
Female
English
Pet form of English Perdita, PURDIE means "lost."
Female
Arthurian
, Orkney, i.e. whale island.
Male
English
Anglicized form of Hebrew Shealtiyel, SHEALTIEL means "borrowed from God." In the bible, this is the name of the father of Zerubbabel.
Boy/Male
Hindu, Indian, Marathi, Traditional
With Severe Penance
Girl/Female
Hungarian
Brave.
Girl/Female
Latin
Named for the Furies.
Female
Egyptian
, a Japhetic chieftainess.
SUBSAMPLING
SUBSAMPLING
SUBSAMPLING
SUBSAMPLING
SUBSAMPLING