基于PDE的射线图像增强算法研究
lgorithm of Radiographic image enhancement based on PDE
根据射线图像噪声大,对比度差的特点,首先对原始图像进行全局直方图均衡,然后用保持形状的局部反差增强技术使图像按水平集分层,并在每层内实施反差增强,在实施反差增强后,对每层的子图像进行去噪处理,最后再进行合成。实验表明,该算法能够有效的增强射线图像的对比度,减小了噪声的增强幅度,使增强后的图像有更好的视觉效果,克服了传统算法中噪声过增强的现象。
ccording to the characteristics of X-ray image noise, contrast, Firstly, do global histogram equalization for the original image, Then use the holding the image shape local contrast enhancement technology to collect the level image, and in contrast enhancement in each layer. After contrast enhancement, dealing with the noise of every layer of sons ,At last synthesis. Experiments show that this algorithm can effectively enhance the image contrast and X-ray reduced noise, make the enhancement image better visual effect, overcome the traditional algorithm of noise enhancement.
冯晓夏、王明泉、梁君婷
射流技术遥感技术计算技术、计算机技术
对比度增强PDE直方图均衡保持形状降噪
ontrast enhancementPDEHistogram equalizationShape preservingDenosing.
冯晓夏,王明泉,梁君婷.基于PDE的射线图像增强算法研究[EB/OL].(2010-10-28)[2025-08-02].http://www.paper.edu.cn/releasepaper/content/201010-537.点此复制
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