Spatial frequency coloring and feature coloring
- 1 May 1981
- journal article
- Published by IOP Publishing in Journal of Optics
- Vol. 12 (3) , 169-172
- https://doi.org/10.1088/0150-536x/12/3/002
Abstract
Presents a method that uses as components a dispersive element (prism or grating) and a gray spatial filter. The dispersive element produces a multitude of laterally shifted spatial frequency spectra in the Fourier domain. A suitable gray transparency in the Fourier plane assigns to every spatial frequency a typical wavelength. Hence, the texture of the object can be color encoded in the image. In a second experiment the filter is computed such that one out of two different patterns appear red and the other green. This experiment is an extension of Wiener filtering.Keywords
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