一种SLIP模型的图像增强新算法  

New image enhancement algorithm based on the SLIP model

作　　者：张广燕[1] 王俊平[1] 汪松[1] 曹洪花[1] 许丹[1] 李锦[1] 李长江[1] 

机构地区：[1]西安电子科技大学通信工程学院,陕西西安710071

出　　处：《西安电子科技大学学报》2014年第1期105-109,169,共6页Journal of Xidian University

基　　金：国家自然科学基金资助项目(61173088);西安市产业技术创新计划资助项目(CX1248⑤)

摘　　要：提出了一种基于对称对数图像处理(SLIP)模型的图像增强新算法.该算法首先在分析现有对数图像增强算法的基础上,得到关于图像灰度值的SLIP图像增强算法,然后运用SLIP模型的向量运算,使SLIP图像增强算法简化为便于实现的简单数学运算.该算法既能以反射光图像的模式对图像进行增强,又能以透射光图像的模式对图像进行增强.通过主观评价和熵增强方法进行客观评价,结果表明,该算法不仅能增强图像的细节,还能提升图像的整体对比度,同时还克服了现有的对数图像增强算法不能以反射光图像的模式对图像进行增强的缺点.Image enhancement technology plays an important role in human life, social production, etc. This paper presents a new algorithm for image enhancement based on the SLIP （Symmetric Logarithmic Image Processing） model. Firstly, we get the SLIP image enhancement algorithm about image gray values based on the analysis of the existing logarithmic image enhancement algorithm. Then the SLIP image enhancement algorithm is simplified to the simple mathematical operation using the vector operation of the SLIP model. The proposed algorithm can enhance the image not only with the mode of the transmitted light image but also with the mode of the reflected light image. By means of subjective evaluation and EMEE objective evaluation, experimental results show that the proposed algorithm can enhance the image detail and improve the overall image contrast. Meanwhile, the algorithm overcomes the disadvantage that LIP image enhancement algorithm cannot enhance the images with the mode of the reflected light image.

关 键 词：对数图像处理 图像增强 熵增强方法 对比度 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]