Investigation of the influence of the number of discretization levels of blurred image on the restoration quality
Kokoshkin, V. A. Korotkov
Kotel'nikov Institute of
Radio Engineering and Electronics of
RAS, Fryazino branch
September 2, 2013
Abstract : The difference in image quality is
almost not distinguishable by human being if 256 (the most common) or 128 and even 64 brightness levels are used. However, errors due to discretization of
analog signal play a significant
role in improvement of image quality. The latter is important in constructing
radio-vision systems. The image quality can be decreased after saving it
on a disk due to dropping of an excessive (at first
glance) accuracy. The purpose of this paper is investigation of the influence of the
noise produced by discretization of brightness on the process of the
improvement of the image quality.
Key words: discretization noise, image restoration.