Search results
Results From The WOW.Com Content Network
The MIME media type for JPEG is "image/jpeg", except in older Internet Explorer versions, which provide a MIME type of "image/pjpeg" when uploading JPEG images. [10] JPEG files usually have a filename extension of "jpg" or "jpeg". JPEG/JFIF supports a maximum image size of 65,535×65,535 pixels, [11] hence up to 4 gigapixels for an aspect ratio ...
In information and communications technology, a media type, [1] [2] content type [2] [3] or MIME type [1] [4] [5] is a two-part identifier for file formats and format contents. Their purpose is comparable to filename extensions and uniform type identifiers, in that they identify the intended data format. They are mainly used by technologies ...
Image file format. An image file format is a file format for a digital image. There are many formats that can be used, such as JPEG, PNG, and GIF. Most formats up until 2022 were for storing 2D images, not 3D ones. The data stored in an image file format may be compressed or uncompressed. If the data is compressed, it may be done so using lossy ...
The JPEG File Interchange Format ( JFIF) is an image file format standard published as ITU-T Recommendation T.871 and ISO/IEC 10918-5. It defines supplementary specifications for the container format that contains the image data encoded with the JPEG algorithm. The base specifications for a JPEG container format are defined in Annex B of the ...
High Efficiency Video Coding (HEVC, ITU-T H.265) [ 14] is an encoding format for graphic data, first standardized in 2013. It is the primarily used and implied default codec for HEIF as specified in the normative Annex B to ISO/IEC 23008-12 HEVC Image File Format . While not introduced formally in the standard, the acronym HEIC (High-Efficiency ...
In short, Wikipedia media (with the exception of "fair use" media—see below) should be as "free" as Wikipedia's content—both to keep Wikipedia's own legal status secure and to allow as much re-use of Wikipedia content as possible. For example, Wikipedia can accept images under CC-BY-SA (Attribution-Share Alike) as a free license, but not CC ...
Raw image format. A camera raw image file contains unprocessed or minimally processed data from the image sensor of either a digital camera, a motion picture film scanner, or other image scanner. [ 1][ 2] Raw files are so named because they are not yet processed, and contain large amounts of potentially redundant data.
JPEG XR uses a type of integer transform employing a lifting scheme. [25] The required transform, called the Photo Core Transform (PCT), resembles a 4 × 4 DCT but is lossless (exactly invertible). In fact, it is a particular realization of a larger family of binary-friendly multiplier-less transforms called the binDCT. [26]