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Image compression is a type of data compression applied to digital images, to reduce their cost for storage or transmission. Algorithms may take advantage of visual perception and the statistical properties of image data to provide superior results compared with generic data compression methods which are used for other digital data.
Even when noticeable by the user, further data reduction may be desirable (e.g., for real-time communication or to reduce transmission times or storage needs). The most widely used lossy compression algorithm is the discrete cosine transform (DCT), first published by Nasir Ahmed , T. Natarajan and K. R. Rao in 1974.
May be generated by an encoder to create a random access point (to allow a decoder to start decoding properly from scratch at that picture location). May also be generated when differentiating image details prohibit generation of effective P or B-frames. Typically require more bits to encode than other frame types.
Image analysis or imagery analysis is the extraction of meaningful information from images; mainly from digital images by means of digital image processing techniques. [1] ...
The ABC began these efforts soon after Trump's May 30 conviction by pulling the liquor licenses for two of Trump's Jersey clubs — the Trump National Golf Club in Colts Neck and the Trump ...
California wildfires: Angelina Jolie, Jamie Lee Curtis, Sharon Stone, Halle Berry among celebrities helping displaced families
The time resolution used for movies is usually 24 to 48 frames per second (frames/s), whereas high-speed cameras may resolve 50 to 300 frames/s, or even more. The Heisenberg uncertainty principle describes the fundamental limit on the maximum spatial resolution of information about a particle's coordinates imposed by the measurement or ...
Drinking under a glass of wine a day while on the Mediterranean diet might help the heart, a new study finds. Experts aren’t so sure.