Elevation analysis computing the Openness Parameters as proposed by Ryuzo Yokoyama, Mlchlo Shlrasawa, and Richard J. Pike (2002) Visualizing Topography by Openness: A New Application of Image Processing to Digital Elevation Models; Photogrammetric Engineering & Remote Sensing Vol. 68, No. 3, March 2002, pp. 257-265.


Input Data - Elevation


Command Call window with Window Size set to 5 (Default Window Size is 5 if # is specified)

Window Size for Analysis: Any number up to 9 can be specifified (means the total windows spans up to 18 pixels around the pixel under consideration) Larger areas could theoretically be handled as well - but i would need to reprogramm this part - contact author.


Positive Openness with Window Size set to 5

Negative Openness with Window Size set to 5