Digital to Analog Conversion and Visual Evaluation of Thematic Mapper Data

Journal of Imaging Technology
By: , and 


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As a part of the National Aeronautics and Space Administration Landsat D Image Data Quality Analysis Program, the Earth Resources Observation Systems Data Center (EDC) developed procedures to optimize the visual information content of Thematic Mapper data and evaluate the resulting photographic products by visual interpretation. A digital-to-analog transfer function was developed which would properly place the digital values on the most useable portion of a film response curve. Individual black-and-white transparencies generated using the resulting look-up tables were utilized in the production of color-composite images with varying band combinations. Four experienced photointerpreters ranked 2-cm-diameter (0. 75 inch) chips of selected image features of each band combination for ease of interpretability. A nonparametric rank-order test determined the significance of interpreter preference for the band combinations.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Digital to Analog Conversion and Visual Evaluation of Thematic Mapper Data
Series title Journal of Imaging Technology
Volume 11
Issue 3
Year Published 1985
Language English
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Imaging Technology
First page 125
Last page 130
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