成像测井绘图软件抖动滤波器的设计  

The Design of Dithering Filter in Plot Software of Imaging Logging System

作　　者：李安宗[1] 

机构地区：[1]石油大学资源与信息学院

出　　处：《测井技术》2004年第3期228-230,共3页Well Logging Technology

摘　　要：介绍了数字图像处理技术中的半色调处理技术和误差抖动滤波器的设计原理 ,分析了几种常用的误差抖动滤波器的形式 ,并结合成像测井实时绘图的要求 ,设计实现了Floyd和Steinberg抖动滤波器。采用误差抖动分散算法在成像测井系统上实现了实时绘制伪灰度的成像图 ,提高了成像图的质量。使用抖动滤波器后可以在单灰度级的热敏绘图仪上绘制成像图和变密度图 ,其效果非常明显 ,可以用普通热敏绘图仪替代多灰度级热敏绘图仪 ,从而降低系统成本。Introduced are designing principles of halftone processing and dithering filter in digital image processing. Some dithering filter's forms in common use are analyzed. According to the request of real-time plotting in imaging logging, the design of Floyd & Steinberg dithering filter has been realized. With the use of error distribution algorithm in imaging logging system, imaging logging result in gray scale can be plot in realtime and the quality of the images is perfect. The results of imaging logging and variable density logging can be plot on mono-thermal plotter with dithering filter, so gray scale thermal plotter can be replaced by mono-thermal plotter in imaging logging system, thereby reducing the cost of the system.

关 键 词：成像测井 绘图软件 半色调处理 抖动 误差分散算法 

分 类 号：P631.819[天文地球—地质矿产勘探]