SCALE FACTOR OF RESOLUTION CONVERSION BASED ON ORTHOGONAL-TRANSFORMS

Authors
MURAMATSU S KIYA H SAGAWA M
Citation
S. Muramatsu et al., SCALE FACTOR OF RESOLUTION CONVERSION BASED ON ORTHOGONAL-TRANSFORMS, IEICE transactions on fundamentals of electronics, communications and computer science, E76A(7), 1993, pp. 1150-1153
Citations number
NO
Categorie Soggetti
Engineering, Eletrical & Electronic","Computer Applications & Cybernetics
Journal title
IEICE transactions on fundamentals of electronics, communications and computer science → ACNP
ISSN journal
09168508
Volume
E76A
Issue
7
Year of publication
1993
Pages
1150 - 1153
Database
ISI
SICI code
0916-8508(1993)E76A:7<1150:SFORCB>2.0.ZU;2-T
Abstract
It is known that the resolution conversion based on orthogonal transfo rm has a problem that is difference of luminance between the converted image and the original. In this paper, the scale factor of the system employing various orthogonal transforms is generally formulated by co nsidering the DC gain, and the condition of alias free for DC componen t is indicated. If the condition is satisfied, then the scale factor i s determined by only the basis functions.