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Proceedings Paper

A Unified Approach To The Change Of Resolution: Space And Grey Level
Author(s): Michael Werman; Shmuel Peleg; Hillel Rom
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Paper Abstract

Multiple resolution analysis of images is a current trend in computer vision. In most cases, only spatial resolution has been considered. However, image resolution has an additional aspect: grey level, or color, resolution. Color resolution has traditionally been considered in the area of computer graphics. By defining a suitable measure for the comparison of images, changes in resolution can be treated with the same tools as changes in color resolution. A grey tone image, for example, can be compared with a half-tone image having only two colors (black and white), but of higher spatial resolution. An important application can be in pyramids, one of the most commonly used multiple (spatial) resolution schemes, where this approach provides a tool to change the color resolution as well. Increasing color resolution while reducing spatial resolution to retain more image details and prevent aliasing is an example of the possibility to find optimal combinations of resolution reduction, spatial and color, to best fit an application.

Paper Details

Date Published: 24 June 1988
PDF: 14 pages
Proc. SPIE 0901, Image Processing, Analysis, Measurement, and Quality, (24 June 1988); doi: 10.1117/12.944709
Show Author Affiliations
Michael Werman, Hebrew University (Israel)
Shmuel Peleg, Hebrew University (Israel)
Hillel Rom, Hebrew University (Israel)


Published in SPIE Proceedings Vol. 0901:
Image Processing, Analysis, Measurement, and Quality
Gary W. Hughes; Patrick E. Mantey; Bernice E. Rogowitz, Editor(s)

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