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A unified approach to the change of resolution: space and gray-level

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3 Author(s)
Peleg, S. ; Dept. of Comput. Sci., Hebrew Univ. of Jerusalem, Israel ; Werman, M. ; Rom, H.

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.

Published in:

Pattern Analysis and Machine Intelligence, IEEE Transactions on  (Volume:11 ,  Issue: 7 )

Date of Publication:

Jul 1989

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