测井技术2017，Vol.41Issue(3)：296-300,5.DOI:10.16489/j.issn.1004-1338.2017.03.009
基于限定对比度直方图均衡的超声测井图像增强方法
Method for Ultrasonic Logging Well Image Enhancement Based on Contrast Limited Adaptive Histogram Equalization
摘要
Abstract
In consideration of low contrast and blurred details in ultrasonic logging well image, the algorithm named contrast limited adaptive histogram equalization is referenced and applied to enhance ultrasonic logging well image.Segmentation sub-block number and shear coefficient are adjusted through simulation to obtain the suitable parameters for logging well image enhancement, subjective visual and objective parameters are used to evaluate the result of the experiment.The experimental results show that the proposed method has good effect on quality improvement for ultrasonic logging well image, can highlight local details, avoid the common problem of excess brightness in flat area, which is of great significance for further improving the accuracy of sonic imaging logging data interpretation.关键词
超声测井图像/限定对比度/直方图均衡化/子块/图像增强Key words
ultrasonic logging well image/contrast limited/histogram equalization/sub-block/image enhancement分类
天文与地球科学引用本文复制引用
付青青,杨立华,付建栋,吴爱平..基于限定对比度直方图均衡的超声测井图像增强方法[J].测井技术,2017,41(3):296-300,5.基金项目
国家自然科学基金(51604038,51541408) （51604038,51541408）
湖北省教育厅重点科技项目(D20141303) （D20141303）
湖北省自然科学基金(2013CFB399) （2013CFB399）
