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Reduction of image size to save storage and transmission costs
Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Algorithms may take advantage
Image_compression
Compact encoding of digital data
became more common, and standards for lossless image compression emerged. In the early 1990s, lossy compression methods began to be widely used. In these schemes
Data_compression
Distortion of media caused by lossy data compression
In computing, a compression artifact (or artefact) is a noticeable distortion of digital media (including images, audio and video) caused by the application
Compression_artifact
Type of data compression
approximation create coarser images as more details are removed. This is opposed to lossless data compression (reversible data compression) which does not degrade
Lossy_compression
Lossy compression method for reducing the size of digital images
method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted
JPEG
Data compression approach allowing perfect reconstruction of the original data
Lossless compression is a class of data compression that allows the original data to be perfectly reconstructed from the compressed data with no loss of
Lossless_compression
Compression method for digital images
Fractal compression is a lossy compression method for digital images, based on fractals. The method is best suited for textures and natural images, relying
Fractal_compression
Family of lossless-compression image file formats
data compression. PNG was developed as an improved, non-patented replacement for Graphics Interchange Format (GIF). PNG supports palette-based images (with
PNG
Standardized means of organizing and storing digital images
done so using lossy compression or lossless compression. For graphic design applications, vector formats are often used. Some image file formats support
Image_file_format
Type of data compression
Texture compression is a specialized form of image compression designed for storing texture maps in 3D computer graphics rendering systems. Unlike conventional
Texture_compression
Pictures encoded as binary data
technologies, and data compression algorithms. The invention of computerized axial tomography (CAT scanning), using x-rays to produce a digital image of a "slice"
Digital_image
Texture compression algorithm
some image compression algorithms (e.g. JPEG), S3TC's fixed-rate data compression coupled with the single memory access (cf. Color Cell Compression and
S3_Texture_Compression
Lossy and lossless image format
The JPEG XL Image Coding System (JPEG XL, sometimes shortened to JXL) is an image format that supports both lossy and lossless compression. It was developed
JPEG_XL
Series of image file formats
Revision 5.0 was released and it added support for palette color images and LZW compression. TIFF is a complex format, defining many tags of which typically
TIFF
Digital image used to test image algorithms
A standard test image is a digital image file used across different institutions to test image processing and image compression algorithms. By using the
Standard_test_image
Bitstream encoding format for still images
CCITT Group 4 compression, also referred to as G4 or Modified Modified READ (MMR), is a lossless method of image compression used in Group 4 fax machines
Group_4_compression
Image compression standard and coding system
JPEG 2000 (JP2) is an image compression standard and coding system. It was developed from 1997 to 2000 by a Joint Photographic Experts Group committee
JPEG_2000
Algorithmic processing of digitally-represented images
and communications of electronic image data are prohibitive without the use of compression. JPEG 2000 image compression is used by the DICOM standard for
Digital_image_processing
French computer scientist (born 1960)
artificial intelligence, machine learning, computer vision, robotics and image compression. He is the Jacob T. Schwartz Professor of Computer Science at the
Yann_LeCun
Mathematical technique used in data compression and analysis
Wavelet compression is a form of data compression well suited for image compression (sometimes also video compression and audio compression). Notable
Wavelet_transform
Lossy compression technique
Quantization, involved in image processing, is a lossy compression technique achieved by compressing a range of values to a single quantum (discrete) value
Quantization (image processing)
Quantization_(image_processing)
Image compression file format
ICER is a wavelet-based image compression file format used by the NASA Mars rovers. ICER has both lossy and lossless compression modes. The Mars Exploration
ICER_(file_format)
Raster graphics file format
replacement for the JPEG, PNG, and GIF file formats on the Web. It supports image compression (both lossy and lossless), as well as animation and alpha compositing
WebP
Format for digital video content
A video coding format (or sometimes video compression format) is an encoded format of digital video content, such as in a data file or bitstream. It typically
Video_coding_format
Technique used in signal processing and data compression
technique in signal processing and data compression. It is used in most digital media, including digital images (such as JPEG and HEIF), digital video
Discrete_cosine_transform
File format used by AOL
of the ART format can lead to image quality being sacrificed for the sake of image compression (for instance, the image's color palette can be limited)
ART_image_file_format
Standard organisation for image formats
standards committee that created and maintains widely used digital image compression formats. The committee is a collaborative working group of the International
Joint Photographic Experts Group
Joint_Photographic_Experts_Group
Image compression file format
The Quite OK Image Format (QOI) is a specification for lossless image compression of 24-bit (8 bits per color RGB) or 32-bit (8 bits per color with 8-bit
QOI_(image_format)
Indian-American electrical engineer and computer scientist (born 1940)
The DCT is the most widely used data compression transformation, the basis for most digital media standards (image, video and audio) and commonly used
Nasir_Ahmed_(engineer)
Metric used to measure signal quality
commonly used to quantify reconstruction quality for images and video subject to lossy compression. In this context it is used as a full reference metric
Peak_signal-to-noise_ratio
Electronic moving image
physical media, and internet-based platforms. Advances in digital imaging, compression standards, and network infrastructure have significantly influenced
Video
Perceptually indistinguishable data compression
In data compression and psychoacoustics, transparency is the result of lossy data compression advanced enough that the compressed result is perceptually
Transparency (data compression)
Transparency_(data_compression)
Form of lossless data compression
to palette-based bitmap images (which use relatively few colors) such as computer icons, and was a popular image compression method on early online services
Run-length_encoding
Raster graphics file format
save 1TB on image bandwidth? Declassifying our extreme image compression!]. 51CTO. "图片流量节省大杀器：基于 CDN 的 sharpP 自适应图片技术实践 - 腾讯云开发者社区-腾讯云" [Image bandwidth-saving
High Efficiency Image File Format
High_Efficiency_Image_File_Format
Digital image processing technique
algorithms. Some common applications of foveated imaging include imaging sensor hardware and image compression. For descriptions of these and other applications
Foveated_imaging
Russian scientist and educator (1927–2020)
Soviet and Russian scientist and educator in the fields of image transmission, image compression and human visual system. Krasilnikov graduated from the
Nikolay_Krasilnikov
Type of multi-scale signal representation
reconstruction of the high resolution image using the difference images on higher levels. This technique can be used in image compression. A steerable pyramid, developed
Pyramid_(image_processing)
Image compression algorithm
FELICS, which stands for Fast Efficient & Lossless Image Compression System, is a lossless image compression algorithm that performs 5-times faster than the
FELICS
Compressed image file format
JPEG XR (JPEG extended range) is an image compression standard for continuous tone photographic images, based on the HD Photo (formerly Windows Media Photo)
JPEG_XR
Image file format
JBIG is an early lossless image compression standard from the Joint Bi-level Image Experts Group, standardized as ISO/IEC standard 11544 and as ITU-T recommendation
JBIG
Topics referred to by the same term
compression (data), reducing the data required for audio Compression artifact, defect in data due to compression Image compression, of digital images
Compression
Subset of artificial intelligence
AI-powered audio/video compression software include NVIDIA Maxine, AIVC. Examples of software that can perform AI-powered image compression include OpenCV, TensorFlow
Machine_learning
Raster graphics format
Image Format (FLIF) is a lossless image format claiming to outperform PNG, lossless WebP, lossless BPG and lossless JPEG 2000 in terms of compression
Free_Lossless_Image_Format
Image processing technique
usually due to memory limitations, and enables efficient compression of certain types of images. The name "color quantization" is primarily used in computer
Color_quantization
data compression well suited for image compression (sometimes also video compression and audio compression) Transform coding: type of data compression for
List_of_algorithms
File format family
applications as a competitor to RealVideo, and WMV Screen and WMV Image compression technologies, which cater to specialized content. After standardization
Windows_Media_Video
Image file format
JBIG2 is an image compression standard for bi-level images, developed by the Joint Bi-level Image Experts Group. It is suitable for both lossless and
JBIG2
Prediction of digital video quality
image quality assessment". Signal Processing: Image Communication. 25 (7): 517–526. doi:10.1016/j.image.2010.03.004. "Redirect page". www.compression
Structural similarity index measure
Structural_similarity_index_measure
File format
Graphics File) is a wavelet-based bitmapped image format that employs lossless and lossy data compression. PGF was created to improve upon and replace
Progressive_Graphics_File
Mathematical transform
data compression. As graph signals can be sparse in their graph spectral domain, the graph Fourier transform can also be used for image compression. Similar
Graph_Fourier_transform
Addition to JPEG standard
a low-complexity lossless and near-lossless image compression standard that could offer better compression efficiency than lossless JPEG. It was developed
Lossless_JPEG
Lossless compression image segmentation method
A chain code is a lossless compression based image segmentation method for binary images based upon tracing image contours. The basic principle of chain
Chain_code
Objective full-reference video quality metric
California, the IPI/LS2N lab Nantes Université, and the Laboratory for Image and Video Engineering (LIVE) at The University of Texas at Austin. It predicts
Video Multimethod Assessment Fusion
Video_Multimethod_Assessment_Fusion
Method for the construction of fractals
also called local iterated function systems, give surprisingly good image compression, even for photographs that do not seem to have the kinds of self-similar
Iterated_function_system
Universal lossless data compression algorithm
produced better compression ratios using the LZ77-based DEFLATE algorithm. The algorithm found wide use when it became part of the GIF image format in 1987
Lempel–Ziv–Welch
Matrix decomposition
computing the SVD can be too computationally expensive and the resulting compression is typically less storage efficient than a specialized algorithm such
Singular_value_decomposition
Components from image source to output
conversion, image compression/video compression (such as JPEG), and computer data storage/data transmission. Typical goals of an imaging pipeline may
Color_image_pipeline
Nikon media processors
image compression/JPEG encoding video compression display/video interface driving digital image editing face detection audio processing/compression/encoding
Expeed
Forgent Networks claimed this patent, granted in 1987, covered the JPEG image compression format. The broadest claims of the US patent were found to be invalid
List_of_software_patents
spatial data such as images. The transform reshapes the data in such a way that its output has properties conducive for data compression and analytics. The
Anamorphic_stretch_transform
redundancy compression are methods of data compression that exploits redundancy between individual data groups of a set, usually a set of similar images. It
Set_redundancy_compression
Lossy color image compression algorithm
Color Cell Compression is a lossy image compression algorithm developed by Campbell et al., in 1986, which can be considered an early forerunner of modern
Color_Cell_Compression
Image compression algorithm
(SPIHT) is an image compression algorithm that exploits the inherent similarities across the subbands in a wavelet decomposition of an image. The algorithm
Set partitioning in hierarchical trees
Set_partitioning_in_hierarchical_trees
Image compression method
segmentation methods to improve the level of compression and the quality of the rendered image. By separating the image into components with different compressibility
Mixed_raster_content
Creation of a digitally encoded representation of the visual characteristics of an object
the processing, compression, storage, printing and display of such images. A key advantage of a digital image, versus an analog image such as a film photograph
Digital_imaging
Video compression method for HDMI and DisplayPort links
"visually lossless" compression, a form of compression in which "the user cannot tell the difference between a compressed and uncompressed image". ISO 29170 more
Display_Stream_Compression
Digital image file format
replacement for the JPEG image format as the more compression-efficient alternative in terms of image quality or file size. It is based on the intra-frame
Better_Portable_Graphics
Index of articles associated with the same name
signal compression include: Bandwidth compression Data compression Dynamic range compression Gain compression Image compression Lossy compression One-way
Signal_compression
regularity to increase the filter's bandwidth, which might lead to better image compression performance. Nowadays, a large amount of information is stored, processed
Biorthogonal nearly coiflet basis
Biorthogonal_nearly_coiflet_basis
(JPEG 2000 Interactive Protocol) is a compression streamlining protocol that works with JPEG 2000 to produce an image using the least bandwidth required
JPIP
File format developed by Apple and used by macOS
format that supported compression of floppy disk images is called DART. New Disk Image Format (NDIF) was the previous default disk image format in Mac OS 9
Apple_Disk_Image
Video compression format, succeeds H.264/MPEG-4 AVC
also known as H.265 and MPEG-H Part 2, is a patent-encumbered video compression standard designed as part of the MPEG-H project as a successor to the
High_Efficiency_Video_Coding
American data storage company
on digital assets. In 2024, Cloudinary added AI tools to improve image compression and quality across devices and formats. The company also expanded
Cloudinary
Overview of and topical guide to computer vision
vision) Hough transform Radon transform Walsh–Hadamard transform Image compression Filter bank Gabor filter JPEG 2000 Adaptive filtering Visual perception
Outline_of_computer_vision
Computer file format
loading, arithmetic coding, and lossy compression for bitonal (monochrome) images. This allows high-quality, readable images to be stored in a minimum of space
DjVu
Raster graphics file format
AV1 Image File Format (AVIF extension/container) is an open, royalty-free file format specification for storing images or image sequences compressed with
AVIF
Indian-American electrical engineer (1946–1988)
image data compression", including work on transform coding for image compression and block-based motion compensation for video compression in particular
Anil K. Jain (electrical engineer, born 1946)
Anil_K._Jain_(electrical_engineer,_born_1946)
Algorithm used in data compression
compression of images. Cox et al. presented a genomic compression scheme that uses BWT as the algorithm applied during the first stage of compression
Burrows–Wheeler_transform
French mathematician and computer scientist (born 1965)
compression. His work presents stochastic gradient descent as a fundamental learning algorithm. He is also one of the main creators of the DjVu image
Léon_Bottou
Set of digital image capture and processing techniques
are image scaling, dynamic range compression (i.e. tone mapping), color management, image completion (a.k.a. inpainting or hole filling), image compression
Computational_photography
Computer programmer
with Mark Adler. He wrote a chapter on fractal image compression for Mark Nelson's The Data Compression Book. From 1981 to 1989 he worked as a senior developer
Jean-Loup_Gailly
Low-latency video compression standard
for the direct compression of RAW Bayer/CFA images using the Star-Tetrix Color Transform. This transform takes a RAW Bayer pattern image and decorrelates
JPEG_XS
File format used in digital photography
let photographers choose between no compression, lossless compression or lossy compression for their raw images. Red Digital Cinema Camera Company introduced
Raw_image_format
lossy data compression that exploits the limitations of human sensory system in order to reduce data size. It is widely applied in audio, image and video
Perceptual_coding
Digital electronic representation of moving visual images
the video requires further compression with codecs to be used for recreational purposes. As of 2017[update], the highest image resolution demonstrated for
Digital_video
Disk file format
2019. "[MS-XCA]: Xpress Compression Algorithm". 31 January 2023. wimlib: the open source Windows Imaging (WIM) library - Compression algorithm Biggers, Eric
Windows_Imaging_Format
File format for aerial photography
ECW (Enhanced Compression Wavelet) is a proprietary wavelet compression image format used for aerial photography and satellite imagery. It was developed
ECW_(file_format)
Diagnostically acceptable irreversible compression (DAIC) is the amount of lossy compression which can be used on a medical image such that there is no negative
Diagnostically acceptable irreversible compression
Diagnostically_acceptable_irreversible_compression
Method for recursively subdividing a space into two subsets using hyperplanes
Radha's thesis also developed an optimal rate-distortion (RD) image compression framework and image manipulation approaches using BSP trees. Binary space partitioning
Binary_space_partitioning
Truncation Coding (BTC) is a type of lossy image compression technique for greyscale images. It divides the original images into blocks and then uses a quantizer
Block_Truncation_Coding
Processing unit in image and video compression formats
The macroblock is a processing unit in image and video compression formats based on linear block transforms, typically the discrete cosine transform (DCT)
Macroblock
Belgian-American physicist and mathematician (born 1954)
with wavelets in image compression. Daubechies is recognized for her study of the mathematical methods that enhance image-compression technology. She is
Ingrid_Daubechies
Mathematical signal manipulation by computers
statistical signal processing, digital image processing, data compression, video coding, audio coding, image compression, signal processing for telecommunications
Digital_signal_processing
"WebAssembly/design". GitHub. Retrieved 2016-11-01. "Lepton image compression: saving 22% losslessly from images at 15MB/s". Dropbox. "Journal (jdb2)". Linux kernel
List_of_file_signatures
File format
JPEG XT (ISO/IEC 18477) is an image compression standard which specifies backward-compatible extensions of the base JPEG standard (ISO/IEC 10918-1 and
JPEG_XT
Class of video frames processed in a distinct way by a compression algorithm
In the field of video compression, a video frame is compressed using different algorithms with different advantages and disadvantages, centered mainly
Video compression picture types
Video_compression_picture_types
Audio signal processing operation
Dynamic range compression (DRC) or simply compression, is an audio signal processing operation that reduces the volume of loud sounds or amplifies quiet
Dynamic_range_compression
Partitioning a digital image into segments
In digital image processing and computer vision, image segmentation is the process of partitioning a digital image into multiple image segments, also
Image_segmentation
Adaptive Binary Optimization, (ABO), is a supposed lossless image compression algorithm by MatrixView Ltd. It uses a patented method to compress the high
Adaptive_Binary_Optimization
Lossless compression algorithm
Graphics (PNG) image file, and the ZIP file format for which Katz originally designed it. The patent has since expired. Deflate compression takes any sequence
Deflate
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