A New Approach to Hand Vein Image Enhancement
A novel approach is proposed for enhancement the contrast of the background and the vein texture image based on the combination of high-frequency emphasis filtering and histogram equalization, it overcomes the influence of luminous intensity and thickness of the back of hand skin. High frequency emphasis filtering is used to give prominence to vein texture, and then histogram equalization is adopted to enlarge contrast of image. Experimental results show that the vein texture of image is clear,and it is an effective algorithm to enhance hand vein image.
image enhancement high-frequency emphasis filtering histogram equalization
Jianjun Zhao Hongliang Tian Weixing Xu Xin Li
Institute of Advanced Control and Intelligent Information Processing Henna University Kaifeng, China
国际会议
长沙
英文
499-501
2009-10-10(万方平台首次上网日期,不代表论文的发表时间)