JPEG
Sign in to savethumb|Continuously varied JPEG compression (between Q=100 and Q=1) for an abdominal [[CT scan]]
AI overview
JPEG is a file format that compresses images to make them smaller and easier to store or share, with the ability to adjust how much quality you're willing to sacrifice for smaller file sizes. It matters because it's widely used for photographs and images on the internet, allowing people to balance image quality against practical storage and transmission needs.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- File format.name
- JPEG Multi-Picture
- File format.logo
- JPEG format logo.svg
- File format.screenshot
- border|200px
- File format.caption
- A photo of a European wildcat with the compression rate, and associated losses, decreasing from left to right
- File format.extension
- , , , ,
- File format.mime
- hide
- File format.uniform type
- public.mpo-image
- File format.compression
- Id
- File format.owner
- Joint Photographic Experts Group, IBM, Mitsubishi Electric, AT&T, Canon Inc.
- File format.genre
- Lossy image compression format
- File format.extended to
- JPEG 2000
- File format.standard
Article
37 sectionsContents
- History
- Background
- JPEG standard
- Patent controversy
- Typical use
- JPEG compression
- Lossless editing
- JPEG files
- JPEG filename extensions
- Color profile
- Syntax and structure
- JPEG codec example
- Encoding
- Color space transformation
- Downsampling
- Block splitting
- Discrete cosine transform
- Quantization
- Entropy coding
- Compression ratio and artifacts
- Decoding
- Required precision
- Effects of JPEG compression
- Sample photographs
- Lossless further compression
- Derived formats for stereoscopic 3D
- JPEG Stereoscopic
- JPEG Multi-Picture Format
- Implementations
- Successors
- JPEG LS
- JPEG 2000
- JPEG XT
- JPEG XL
- See also
- References
- External links
thumb|Continuously varied JPEG compression (between Q=100 and Q=1) for an abdominal [[CT scan]]
JPEG ( , short for Joint Photographic Experts Group and sometimes retroactively referred to as JPEG 1) is a commonly used method of lossy compression for digital images, particularly for those images produced by digital photography. The degree of compression can be adjusted, allowing a selectable trade off between storage size and image quality. JPEG typically achieves 10:1 compression with a loss in image quality that, while perceptible, is widely agreed upon to be acceptable. Since its introduction in 1992, JPEG has been the most widely used image compression standard in the world, and the most widely used digital image format, with several billion JPEG images produced every day as of 2015.