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Using Computer Imaging To Assess Visual Impacts Of Forest Insect And Disease Pests, Daniel Rabin
Using Computer Imaging To Assess Visual Impacts Of Forest Insect And Disease Pests, Daniel Rabin
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Forest insect and disease pests alter the appearance of trees, thereby impacting visual resources. Because of the complexity of most forest landscapes, the degree of visual impact of pest-infested forest stands is difficult to quantify.
This paper describes a method of measuring visual impacts of pest-infested forest stands. Photographs of healthy Ponderosa pine trees were entered into a computer video-image-processing system. Using this system, images of trees were altered to simulate different degrees of infestation by limb rust, a forest pathogen.
The altered and unaltered images were shown to groups of observers who rated the scenes in terms of "scenic …