Title :
A unified approach to the change of resolution: space and gray-level
Author :
Peleg, Shmuel ; Werman, Michael ; Rom, Hillel
Author_Institution :
Dept. of Comput. Sci., Hebrew Univ. of Jerusalem, Israel
fDate :
7/1/1989 12:00:00 AM
Abstract :
It is shown that by defining a suitable measure for the comparison of images, changes in resolution can be treated with the same tool as changes in color resolution. A gray-tone image, for example, can be compared to a half-tone image having only two colors (black and white), but of higher spatial resolution. A graph-theoretical definition of the basic measure used is introduced. This is followed by application to spatial resampling and gray-level requantization. This results in a hybrid treatment of resolution, and the possibility of trading spatial for gray-level resolution and vice versa.
Keywords :
computer vision; graph theory; computer vision; graph theory; gray-level requantization; gray-tone image; half-tone image; resolution change; spatial resampling; Application software; Computer graphics; Computer vision; Image analysis; Image coding; Image resolution; Read only memory; Signal resolution; Spatial resolution; Tail;
Journal_Title :
Pattern Analysis and Machine Intelligence, IEEE Transactions on
