Abstract
This paper describes the feasibility of analyzing multi-spectral data using a micro-computer, in which a mini-floppy disk is used as a data storage device. The mini-floppy disk has a storage capacity of 256 pixel times 200 line times 4 channel data by 8 bits. The system configuration used for this study was as follows ;
1. Micro-computer (MZ-2000) /RAM memory 64K bytes
2. Mini-floppy disk/two drives, 320K bytes per drive
3. RGB color monitor/200 rows of 640 columns in 8 colors
Using the above system, the following results were obtained. (1) land classified image by 8-level slice of Landsat MSS7 data, (2) ocean current by 19-level slice image of NOAA/AVHRR ch 4 data, (3) false color expression of Landsat MSS data by three gradations, (4) land classified image based on aerial MSS data, (5) expression of the earth by level slicing of Meteosat visible data, (6) landscape of central Japan in false color from NOAA/AVHRR data. These results have given us some idea of the capabilities of the present-day micro-computer for analyzing multi-spectral data.
Total cost of this system was \430, 000 (about $1, 800) as of January 1983.
Informations to be extracted from presented images:
Plate 1. Landuse of Kansai district
Plate 2. Kuroshio current off Kii peninsula
Plate 3. Vegetation of Imperial Palace and vicinity
Plate 4. Ocean and Land of the Western Hemisphere
Plate 5. Ocean and Land of the Mediterranean Sea
Plate 6. Topography of Kansai district
Plate 7. Vegetation and urbanized area in Tokyo
Plate 8. Landscape of Central Japan
