A unified approach to the change of resolution: space and gray-level |
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| Authors: | Peleg S. Werman M. Rom H. |
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| Affiliation: | Dept. of Comput. Sci., Hebrew Univ. of Jerusalem, Israel; |
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| 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.<> |
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