【摘要】 目的 研究一种可以不采用加窗显示高灰度级CT图像的方法。方法 采用基于统计分类的非线性灰度调节方法，将不同组织的灰度值分别拉伸到256级。结果 可以同时显示不同组织的细节。结论 本方法算法简单，处理速度快，配合边界检测算法，可以得到质量较高的CT图像。

    Quan Haiying，Ren Zhaohui，Deng Junmin，et al.

    Capital University of Medical Sciences，BME College，Beijing100054.

    【Abstract】 Objective To study a method to display high gray level CT image without window.Methods Put the different organization gray level up to256gray levels by nonlinear gray adjustment based on statistical class.Results It can display the details of different organizations.Conclusion It is a simple method and the processing speed is fast.The high quality CT image was obtained when the verge detection method was used.

    Key words CT image histogram image processing

    对于高灰度级的CT图像最常用的显示方法是传统的灰度窗方法 ......