0
JPEG is a definition of an image compression algorithm. Any image can be compressed using any combination of compression methods, both lossy and lossless, or a combination of both. The only real requirement for a JPEG image is that any file compressed as a JPEG must be in a format that can be read and expanded by any JPEG-supported device.
JPEG is an acronym of Joint Photographic Experts Group which defines the standard. Although there is just one standard, which originated in 1992, it has been revised through the years to incorporate extensions. There are currently two primary extensions: Exif (Exchangeable Image File format) and JFIF (JPEG File Interchange Format), which largely describe how the embedded JPEG image is transported between devices. The JPEG extensions also allow multiple images to be embedded in a single file.
The JPEG compression algorithm itself is a lossy algorithm which allows a degree of variability, providing a trade-off between image quality and file size. Typically, an image can be reduced to around 1/10th of its original size (10:1 compression) with little perceptible loss in quality. However, while JPEG includes a lossless mode, few products actively support it. For lossless compression, TIFF, GIF, PNG and RAW formats are the most commonly supported. The RAW format is the best format for lossless digital cameras as this captures an exact binary dump of the video chip, thus allowing image editors and post-processors to reveal data that would otherwise be lost (such as detail within shadows). Once edited, the RAW image can be compressed to JPEG or other lossy format for transport purposes.
JPEG files typically have a .jpg file extension, although .jpeg, .jpe, .jfif and .jif are common alternatives for extended mode JPEG. However, the file extension is merely a hint to the file's content, nothing more, and are largely used to associate files with programs. The actual content is defined within the file's own metadata (the file header). Thus image decoders use the metadata to physically decode the file, never the file extension.
JPEG can also be embedded into other formats. For instance, TIFF files often use JPEG encoding to incorporate a thumbnail of the image within the file's metadata.
What else can I help you with?
What is the full form of JPEG?
Joint Photographic Experts Group
What is full form of JPEG?
JOINT PHOTOGRAPHIC EXPERTS GROUP
What id the full form of JPEG?
Joint Photographic Experts Group
What is full form of mpeg and JPEG?
MPEG (Moving Picture Experts Group)
How do you make an image a JPEG without photoshop?
There is no other way u have to have photoshop to turn the image to jpeg it will not work otherwise it will just turn back to its original form that it was in
Which JPEG file tahes up the least amount of memory?
JPEG is a bitmap file type. There are many bitmap file types but JPEG is the one which uses the least amount of memory. However, JPEG image file sizes can be changed by how they are saved in the data loss compression feature which JPEG uses.
What format is best for wordpress graphics?
There are many formats such as jpeg,gif,png and (for favicons) ico. Jpeg format is the best
What is the full form of JPG file?
JPEG is the acronym of Joint Photographic Experts Group
How do you open JPEG files on mac?
JPEG has been a standard form of picture compression since 1992 and is used universally across most computer operating systems including the Mac.
What are some common questions related to the JPEG image format?
Some common questions related to the JPEG image format include: What is JPEG? How does JPEG compression work? What are the advantages and disadvantages of using JPEG? How can I convert a JPEG image to a different file format?
Is it better to print images in JPEG or PNG format?
The choice between printing images in JPEG or PNG format depends on the specific needs of the project. JPEG is better for photographs and images with many colors, while PNG is better for images with transparency or text.
How many bytes will a JPEG screen image be?
The size of a JPEG file depends on the compression algorithm and on the content of the source image. There is no direct answer to you question. What you can do to find it out is to capture the screen, then use mspaint to save the file as a bitmap and after that convert the bitmap to a jpeg using an image converter that allows you to play with the jpeg parameters - for example AZImage. See also related questions and links.
