用于在线门静脉成像的数字对比增强
Digital contrast enhancement for online portal imaging.
作者信息
Leszczynski K W, Shalev S
出版信息
Med Biol Eng Comput. 1989 Sep;27(5):507-12. doi: 10.1007/BF02441470.
PMID:2622232
Abstract
Seven digital contrast enhancement algorithms were implemented and evaluated for application to images obtained with an online video portal imaging system. An objective quantitative comparison shows that superior contrast enhancement is obtained using histogram modification techniques. Additional tests made on an image of a humanoid phantom indicate that local (adaptive) histogram modification methods can produce a better contrast in detail than their global counterparts, if the original image is nonuniform in intensity.
摘要
实现并评估了七种数字对比度增强算法，以应用于通过在线视频门户成像系统获取的图像。客观定量比较表明，使用直方图修改技术可获得更好的对比度增强效果。在人形体模图像上进行的额外测试表明，如果原始图像强度不均匀，局部（自适应）直方图修改方法比全局方法能产生更好的细节对比度。
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