1 April 1980 Hybrid Optical/Digital Texture Analysis
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A hybrid optical/digital system is described for analyzing images based on textural information. A partially coherent white light optical processor is used to obtain the texture related information which is then processed digitally. Specifically the optical system generates a pseudocolor encoded image where the image color is a function of the local spatial frequency content of the image. Cluster analysis is the used to identify different color/texture regions. Experimental results are shown where the system has been applied to the problem of identifying distinct cloud types from satellite photographs.
J. Mantock, A. A. Sawchuk, T. C. Strand, "Hybrid Optical/Digital Texture Analysis," Optical Engineering 19(2), 192180 (1 April 1980). https://doi.org/10.1117/12.7972490 . Submission:

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