计算机工程与应用Issue(8)：183-188,6.DOI:10.3778/j.issn.1002-8331.1305-0186
基于动态范围调整的指纹图像增强方法
Fingerprint image enhancement method based on dynamic range adjustment
摘要
Abstract
Based on the dynamic range adjustment method, a small amount of grayscale pixels on the image near the brightest and darkest areas are filtered, and the image grayscale range is linear broadened so as to realize automatic adjust-ment of image gray dynamic range, and improve the image contrast. The experimental results show that this method can effectively filter gray interference near gray boundary value, the quality and contrast of the images is obviously improved, and details of the image of the light area and the dark area have enhanced obviously, with high processing speed and good robustness.关键词
图像增强/对比度/线性扩展/动态范围调整Key words
image enhancement/contrast/linear spanning/dynamic range adjustment分类
信息技术与安全科学引用本文复制引用
陈蕴,陈松..基于动态范围调整的指纹图像增强方法[J].计算机工程与应用,2015,(8):183-188,6.基金项目
国家自然科学基金（No.61272152）；安徽建筑工业学院人才引进基金（No.K02627）。 （）
