In
computer science
Computer science is the study of computation, automation, and information. Computer science spans theoretical disciplines (such as algorithms, theory of computation, information theory, and automation) to practical disciplines (includin ...
and
information theory
Information theory is the scientific study of the quantification, storage, and communication of information. The field was originally established by the works of Harry Nyquist and Ralph Hartley, in the 1920s, and Claude Shannon in the 1940s. ...
, set redundancy compression are methods of
data compression
In information theory, data compression, source coding, or bit-rate reduction is the process of encoding information using fewer bits than the original representation. Any particular compression is either lossy or lossless. Lossless compressi ...
that exploits redundancy between individual data groups of a set, usually a set of similar images.
It is wide used on medical and satellital images.
[ Ph.D. thesis, Department of Computer Science, Louisiana State University, Baton Rouge, La, USA] The main methods are min-max differential, mín-máx predictive and centroid method.
Methods
Min-max differential
In the ''min-max differential'' (or ''MMD''), for each position (pixel) selects the highest or the lowest. And then in each image is stored the difference of each of their positions with respect to the value previously selected.
References
{{reflist, 2
Data compression