论文标题
基于四元素耐力滤波器的强大色边探测算法
A Robust Color Edge Detection Algorithm Based on Quaternion Hardy Filter
论文作者
论文摘要
本文提出了一个可用于颜色图像边缘检测的称为Quaternion Hardy滤波器（QHF）的可靠过滤器。 QHF可以具有颜色边缘功能增强和噪声阻力。通过选择合适的参数来处理不同级别的噪声来使用QHF是灵活的。特别是，四季度分析信号是颜色图像处理中的有效工具，也可以通过使用特定参数的四元耐硬度过滤产生。基于QHF和改进的Di Zenzo梯度操作员，提出了一种新型的色边缘检测算法。重要的是，可以使用快速离散的四局傅立叶变换技术有效地实现它。实验表明，所提出的算法的表现优于几种广泛使用的算法。
This paper presents a robust filter called quaternion Hardy filter (QHF) for color image edge detection. The QHF can be capable of color edge feature enhancement and noise resistance. It is flexible to use QHF by selecting suitable parameters to handle different levels of noise. In particular, the quaternion analytic signal, which is an effective tool in color image processing, can also be produced by quaternion Hardy filtering with specific parameters. Based on the QHF and the improved Di Zenzo gradient operator, a novel color edge detection algorithm is proposed. Importantly, it can be efficiently implemented by using the fast discrete quaternion Fourier transform technique. The experiments demonstrate that the proposed algorithm outperforms several widely used algorithms.
