Openness

Input Data - Elevation http://www.ai-relief.org//functions/terrain/elevres/elevation.jpg%%

Command Call window with Window Size set to 5 (Default Window Size is 5 if # is specified) http://www.ai-relief.org//functions/terrain/openness/command_openness.jpg

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.

http://www.ai-relief.org//functions/terrain/openness/openness_pos.jpg Negative Openness with Window Size set to 5 http://www.ai-relief.org//functions/terrain/openness/openness_neg.jpg

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.

Elevation analysis computing the Openness Parameters as proposed by Yokohama et al 2002

INPUT

Input Data - Elevation

COMMAND

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, larger areas can be handled as well - contact author.

RESULTS

Positive Openness with Window Size set to 5

Negative Openness with Window Size set to 5