Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/5030
Title: Shaded relief images for cartographic applications
Authors: Taylor, Cyrus C.
Keywords: Atmospheric Haze
Gray-Shade
Image Formation
Orthonormal Projection
Perspective Projection
Photometry
Polynomial Data Base
Relief Contours
Shaded Relief
Variable Sun Angle
Publisher: U.S. Army Engineer Topographic Laboratories.
Engineer Research and Development Center (U.S.)
Series/Report no.: ETL ; 0259.
Description: Research note
Abstract: The computer generation of shaded relief images for cartographic applications is analyzed. The geometric theory of image formation is presented in some detail, and is used to motivate the discussion of the image simulation algorithms developed at the U.S. Anny Engineer Topographic Laboratories (ETL). Several algorithms devised to address specific cartographic problems, such as variable sun angle, haze simulation, and relief contour algorithms, are also discussed. The successful implementation of these algorithms is described. Appendixes summarizing details of the theory are included, as are a Software User's Guide, sample images, and listings of the ETL software.
Rights: Approved for public release; distribution is unlimited.
URI: http://hdl.handle.net/11681/5030
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