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所谓假彩色是相对真彩色而言的。在假彩色象片上,物体影象所呈现的颜色并不是它真实的或天然的色彩,而是以不同的颜色表示不同的光谱反射特性,即特征邑。所谓影象增强成另一幅更清晰的图象的过程,把上述二者结合起来,就是假彩色影象增强技术。陆地卫星MSS假彩色合成象片就是假彩色影象增强技术中的一种。通过假彩色影象增强处理的假彩色卫星象片,目标物的各种判读标志就明显地显示出来,因而具有鲜明、形象、直观、信息丰富,并且用不同色彩表示等特点,有利于分析和判读,而且比较准确。美国曾经利用陆地卫星多光谱扫描象片的假彩色合成象片和地面摄影的天然彩色象片,在加利福尼亚州的部分地区一年生牧草的生长期里,对这些一年生牧草的不同生长状况进行了研究。通过研究,他们认为使用陆地卫星时序获得的多光谱扫描象片的假彩色合成象片,能对牧区的饲料作物生长发育和状况进行区域性的监测。
The so-called false color is relatively true color terms. On false color images, the color of the object image does not represent its true or natural color but rather the different spectral reflectance characteristics of different colors. The so-called image enhancement into another clearer image process, the combination of the two is the false color image enhancement technology. The terrestrial satellite MSS false color composite image is one of the false color image enhancement techniques. Through the false color image enhancement processing of false color satellite imagery, the object of the various signs of interpretation is clearly displayed, which has a clear, vivid, informative, and with different colors, etc., is conducive to analysis and Interpretation, but more accurate. In the United States, false-color composite images of terrestrial satellite multi-spectral scanning images and natural color images of ground photography have been used to study the different growth status of annual grasses in annual growth stages of annual grasses in parts of California. Through their research, they concluded that false-color composite images of multispectral scan images obtained using land-satellite timing could provide a regional picture of the forage crop growth and status in the pastoral areas.