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HLS是英文Hue(色相),Luminance(明度),Saturation(饱和度)三个词第一个字母的组合。以HLS组合的假彩色合成图像不同于流行的黄、品、青组合的假彩色合成图像。由于HLS彩色合成图像接近于类型图,可进行初步分类,所以为遥感信息的解译和制图提供一种良好手段。笔者在法国科学院斯特拉斯堡专题地图实验室借助Univac—1110计算机和Tektronix—4691彩色硬拷贝机进行了南京、雅典、清迈和斯特拉斯堡的陆地卫星和SPOT卫星多光谱数据的HLS彩色合成,取得了良好效果。一、原理
HLS is a combination of the first letters of the three English words Hue, Luminance and Saturation. The false color composite image combined with HLS is different from the popular false color composite image with yellow, green and blue combination. Because HLS color composite images are close to the type map, preliminary classification can be done, so it provides a good means for the interpretation and mapping of remote sensing information. The author conducted HLS (multi-spectral analysis) of terrestrial and SPOT satellites in Nanjing, Athens, Chiang Mai and Strasbourg using the Univac-1110 computer and the Tektronix-4691 color hard copy machine at the French Strasbourg’s Thematic Map Laboratory Color synthesis, and achieved good results. First, the principle