基于灰度对比和自适应小波变换的X射线图像增强
师 黎,陈欣欣
X-ray enhancement based on gray-contrast and adaptive wavelet transform 
Shi Li, Chen Xin-xin
中国组织工程研究 . 2010, (35): 6551 -6554 .  DOI: 10.3969/j.issn.1673-8225.2010.35.023