结合场梯度的位场数据图像非均匀映射技术

利用图像表达位场数据时,位场数据根据色标被映射成颜色,生成的图像能否客观真实地表达出位场数据的内涵特征,关键取决于采用的色标是否合理。为了提高图像表达位场数据细节信息的能力,借鉴图像灰度非均匀整量的思想,给出了一种基于场值梯度的色标文件生成方法。对比于传统的采用根据位场场值大小平均分配色阶的方法,理论模型试验和实际资料的应用结果,都显示了本方法在提高图像表达位场数据细节信息能力上的有效性和优越性。

Non-uniform mapping technique of potential field data image with field gradient

Whether the image can express the characteristics of a potential field data objectively depends on adopted color specification file.In order to raise the image expressing ability of the detail of potential field data,a method of determining color specification file based on field value gradient is brought up from the idea of non-uniform whole quantity.Compared with conventional method,the validity and advantage of this method in expressing the detail information of potential field data have been proved by both model testing and field data applications.