摘要
讨论了直方图均衡的图像增强原理及对原理进行了证明,介绍了处理数字图像增强的具体过程和算法。以一个对比度较小的图像为实例得到其直方图,按照该算法对图像灰度的直方图进行均衡使其近似均匀分布,处理后图像的对比度得到明显改善。
In this paper,it is disucssed that image enhancement is realized by using the theory of the histogram equalization, and proved the correctness of this theory. Meanwhile, they are described the detail of procedure and algorithm of treatment. At last there is a example, which contrast is narrow, is taken and equalized according to the algorithm that is introduced. The result of contrast being improved is shown from the original and equalized images,
出处
《华北科技学院学报》
2003年第2期65-67,共3页
Journal of North China Institute of Science and Technology
关键词
图像增强
直方图均衡
空间域
灰度级
Image enhancement
histogram equalization
spatial domain
grey-level
