土地利用図の色調パターンの認識

抄録

In order to recognize the parrerns represented in a map, picking out of distribution patterens in the map has to be done as pre-processing. Quantitization method was used to pick up the distribution patterns and B. G. R. and B. W. methods are applied for quantitization. Picking out of colour tone distributions was carried out by applying this method. The results show that the accuracy of this method is farily good. But we, also, find some misrecognitions and luck of similitude of patterns between original and obtained figures. In this paper, so, improvement of accuracy are attempted by changing the scale of colour slide obtained from the original map and by increasing nomber of sampling points. As another processing technique, continuous tone negative film separeted each colour tone in the original map is investigated.
As these results, it is clear that distribution patterns represented by several colour tones are able to pick up fairly well by B. G. R. and B. W. method, and they will also be picked out simply by using B. G. R. method only.