基于能量调整的射线图像增强算法  

Radiographic image enhancement algorithm based on energy adjustment

作　　者：曹智阳 黄茜[1] 颜伟鑫 

机构地区：[1]华南理工大学电子与信息学院,广东广州510640

出　　处：《现代电子技术》2015年第13期42-45,共4页Modern Electronics Technique

基　　金：国家自然科学基金项目(61271314);广州市科技计划对外合作项目(2013J4500001);广州科技计划珠江新星项目(2012J2200010)

摘　　要：提出了基于能量调整的射线图像增强算法,该算法是基于成像前后图像能量基本保持不变的前提,在频域上对图像进行高低频能量的相互转换,以达到增强射线图像全局对比度和细节信息的目的。实验部分兼顾定性和定量方法,分析了算法的效果,并与几种常用的图像增强算法进行了比较,结果显示该算法效果较好,能有效解决图像对比度偏低的问题。In this paper,the radiographic image enhancement algorithm based on energy adjustment is proposed,which makes image energy remain the same before and after imaging,and executes interconversion between high and low frequency en？ergy for image in frequency？domain to enhance the overall contrast and detail information of radiographic image. The effect of the algorithm was analyzed by the experiment which gives the consideration to both qualitative and quantitative methods. Experiment results show that the proposed algorithm has better effect than other common image enhancement algorithms and can effectively solve the problem of low image contrast .

关 键 词：能量调整 调制传递函数 低频削弱 高频增强 GAMMA校正 

分 类 号：TN911[电子电信—通信与信息系统]