Digital image coding using legendre transform

Autor:	Diaa M. El Rayess, S. F. Bahgat, Said Ghoniemy
Rok vydání:	1994
Předmět:	Modified discrete cosine transform Hadamard transform Applied Mathematics Signal Processing Discrete cosine transform Lapped transform Image processing Arithmetic S transform Legendre polynomials Algorithm Transform coding Mathematics
Zdroj:	Circuits Systems and Signal Processing. 13:3-18
ISSN:	1531-5878 0278-081X
DOI:	10.1007/bf01183838
Popis:	Image coding can be implemented through DPCM, transform, hybrid, or segmentation coding techniques. Some transform coding techniques, such as cosine and Hadamard, have been exhaustively analyzed and evaluated, while others, such as Legendre, have not. This paper introduces the use of Legendre transform in image coding. The transform matrix for different block sizes is calculated, the fast algorithm is derived, and the performance is evaluated through both mean square error and subjective quality. The results obtained have indicated that the system performance is comparable with that of optimum KLT and cosine transforms; moreover, it is simpler in implementation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9d95848420132b24f425da41b545a74d https://doi.org/10.1007/bf01183838 Zobrazit plný text záznamu Full text from SpringerLink