摘要
图像增强技术在X射线图像处理中具有举足轻重的地位,为了提高X射线图像清晰度,提出一种直方图均衡的X射线图像增强方法。首先采集X射线图像,采用小波变换对其进行多尺度分解,通过阈值去掉X射线图像中的噪声,然后采用直方图均衡法对X射线图像进行增强处理,并对标准直方图均衡法进行相应的改进,最后采用同态滤波对增强后的X射线图像亮度进行处理。实验结果表明,本文方法获得了良好视觉效果的X射线图像,而且对噪声具有较强的鲁棒性。
Image enhancement technology plays an important role in X ray image processing,in order to improve the clarity of X-ray image,a new method of X-ray image enhancement is proposed based on histogram equalization.Firstly,X ray images are collected and the wavelet transform is used to decompose the X ray images,and then the Xray image is enhanced by histogram equalization method while the histogram equalization method is improved,finally,homomorphism filter is used to enhance the brightness of X-ray image. The experimental results show that the image enhancement method in this paper has a good visual effect of X ray image,and has strong robustness to different noise.
出处
《激光杂志》
北大核心
2015年第12期39-41,46,共4页
Laser Journal
基金
江苏省教育厅高校自然科学研究项目(14KJD520006)
关键词
X射线图像
直方图均衡
图像增强方法
细节保持
同态滤波
x-ray image
histogram equalization
image enhancement method
detail preserving
homomorphism filter
