摘要： 针对图像分割中角点提取对图像增强的要求，探讨了同态滤波图像增强技术，研究了同态滤波在频域中的实现方法，同时探讨了其在时域中的对应形式，并且实现了基于小波变换的同态滤波。通过实验验证了算法的有效性，给出了实验分析和结论。实验结果表明，对图像采取同态滤波增强方法，可以增强图像角点提取的准确性

关键词: 图像增强；同态滤波；图像分割；角点提取

Abstract: Based on the demand for image enhancement in corner extraction of image segmentation, this paper researches homomorphic filtering technique. It introduces homomorphic filtering in both frequency domain and spatial domain. Further, it proposes to use wavelet transform in homomorphic filtering. Experimental results are presented to illustrate the performance of this algorithm. Through comparison, the algorithm that can improve the correctness of corner extraction is proved.

Key words: Image enhancement; Homomorphic filter; Image segmentation; Corner extraction