Digital to Analog Conversion and Visual Evaluation of Thematic Mapper Data
Journal of Imaging Technology
By: James R. McCord, Douglas R. Binnie, and Paul M. Seevers
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Abstract
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.
Suggested Citation
McCord, J.R., Binnie, D.R., and Seevers, P.M., 1985, Digital to Analog Conversion and Visual Evaluation of Thematic Mapper Data: Journal of Imaging Technology, v. 11, no. 3, p. 125-130.
| 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 |