电子科技2012，Vol.25Issue(3)：1-3,7,4.
一种鲁棒的低对比度图像预处理算法
A Robust Pretreatment Algorithm for Low Contrast Images
摘要
Abstract
Due to illumination or the object itself,images often become low contrast or blurred in the acquisition process and need further pretreatment before they are used.Grayscale subsection linear transformation is an effective technology for contrast enhancement by means of the rational choice of subsection points.The maximum and minimum values are always used for subsection points,but this method does not work when the original image has wide dynamic range of gray value.Through the analysis of the original image histogram,a robust method is proposed which selects subsection points by setting thresholds in the accumulation of the gray histogram.Experimental results show that the method can enhance the region of low contrast and provide satisfactory images for further processing.关键词
对比度/线性变换/分段点/直方图Key words
contrast/linear transformation/subsection point/histogram分类
信息技术与安全科学引用本文复制引用
张俊生,王明泉,侯慧玲,陈志强..一种鲁棒的低对比度图像预处理算法[J].电子科技,2012,25(3):1-3,7,4.基金项目
山西省青年科技研究基金资助项目 （）
教育部高校博士点专项科研基金资助项目 （）
