计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (10): 173-175.

• 图形、图像处理 • 上一篇    下一篇

基于对比度受限自适应直方图均衡的乳腺图像增强

刘 轩1,刘佳宾2   

  1. 1.北京航空航天大学 机械工程及自动化学院,北京 100083
    2.首都医科大学 宣武医院 放射科,北京 100053
  • 收稿日期:2007-07-18 修回日期:2007-10-29 出版日期:2008-04-01 发布日期:2008-04-01
  • 通讯作者: 刘 轩

Mammary image enhancement based on contrast limited adaptive histogram equalization

LIU Xuan1,LIU Jia-bin2   

  1. 1.School of Mechanical Engineering and Automation,Beihang University,Beijing 100083,China
    2.Department of Radiology,Xuanwu Hospital,Capital University of Medical,Beijing 100053,China
  • Received:2007-07-18 Revised:2007-10-29 Online:2008-04-01 Published:2008-04-01
  • Contact: LIU Xuan

摘要: 采用对比度受限自适应直方图均衡对乳腺图像进行增强,有效地增强了乳腺图像中的细节,如钙化点、乳导管等组织;并通过对算法中相关参数研究,得到应用于乳腺图像增强的参数优选值,以求获得较好的增强效果,为医师分析影像提供方便。通过与灰度直方图均衡的结果进行比较得出:对比度受限自适应直方图均衡为乳腺数字图像增强的有效方法,在计算机辅助乳腺诊断方面有较高应用价值。

关键词: 图像增强, 对比度受限自适应直方图均衡, 乳腺X线照片, 钙化点

Abstract: Mammary images are enhanced by algorithm of Contrast Limited Adaptive Histogram Equalization(CLAHE).Details of mammograph,such as calcifications breast,duct and other tissues in mammary image are enhanced effectively.Parameters of algorithm are optimized to improve the enhancement so that diagnostician can analyze image expediently.Comparing with the result of histogram equalization,it is shown that CLAHE is an effective algorithm to enhance mammary image and it is valuable in computer-aided mammary diagnosis.

Key words: image enhancement, contrast limited adaptive histogram equalization, mammograph, calcification