论文部分内容阅读
从摄影成象的原理可知,摄影影象是曝光和冲洗两大主要变量相互作用的结果。冲洗是将胶片上的潜象经化学处理后成为稳定可见图象的过程,最后获得的摄影图象是由影象密度反映景物的光度和光谱关系的。景物和影象之间要求有已知的联系,例如,对用于几何量测图象来说,必须要求图象上有明确的“内方位”元素,才能建立可供量测的物象共线关系;对图象上用于分析的大量“物”的信息,就必须
From the principle of photographic imaging we can see that the photographic image is the result of the interaction between the two major variables of exposure and irrigation. Flushing is a process by which a latent image on a film is chemically treated to become a stable visible image. Finally, the photographic image obtained by the image density reflects the relationship between the photometry and the spectrum of the scene. For example, for geometrical images it is necessary to require explicit “in-position” elements on the image in order to establish collinear lines of objects for measurement Relationships; a great deal of information about the “things” used in analysis in images must be