Investigation on Color Images of TM Data(III):Two Band False Color Images for Visual Interpretation
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概要
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Suitability of two band false color images for visual interpretation have already been investigated using MSS data. However, it is necessary to reinvestigate two band false color images, because TM data have severl bands lacked in MSS data. Experiments are made in two steps as follows. Experiment (1) with scene 1 : On the base of the previous result on three band false color images, several kinds of two band false color images for sea or land area are prepared respectively and good band combinations and color sequences are selected from them. Experiment (2) with scene 2 : On the base of the experiment (1) on the land area, two band false color images of all band combinations to one of the good color sequences (21 kinds ) are made, and the best band. combination is selected. Moreover, these are compared with typical three band false color images on every objects. On the sea area, it is found that the best band combination is (2-6) and the best color sequence is (BG-R) collectively. On the land area, in case of band combinations excluding band 6, the best band combination is (3-5) on the large scale objects and (3-4) on the small scale objects. In case of band combinations including band 6, the best band combination is (7-6). And the best color sequence is (R-BG) in all cases. Undoubtedly quantity of information keeped in false color images with two bands is less than three bands, but there are enough cases of two band false color images for visual interpretation. Such cases are especially found in band combinations including bands lacked in MSS data. Because two band false color have advantages in some points such as clearness of images and simplicity in imaging method, it is concluded that two band false color images are very useful for some objects, especially water area.
- 社団法人 日本リモートセンシング学会の論文