Abstract
A study on color edge detection using the improved Di Zenzo's gradient operator associated with quaternion Hardy filter is presented. The Di Zenzo gradient operator recently achieved great attentions in edge detection, but it is sensitive to image with additive noise. The quaternion Hardy filter demonstrates its advantage in denoising image. A robust color image edge detection algorithm called Quaternion Hardy filter with the improved Di Zenzo's gradient operator, namely QHFIDZ, is presented in this paper. It preprocesses the color image to quaternion Hardy filter which reduces the noise effect and then apply the improved Di Zenzo's gradient algorithm for edge map. The proposed technique is a robust algorithm for noisy image detection comparison to other image detection techniques.
Abstract (translated)
利用与四元数Hardy滤波器相关的改进Di Zenzo梯度算子,对色彩边缘检测进行了研究。 Di Zenzo梯度算子最近在边缘检测方面受到了极大的关注,但它对具有加性噪声的图像很敏感。四元数Hardy滤波器展示了其去噪图像的优势。本文介绍了一种强大的彩色图像边缘检测算法Quaternion Hardy滤波器,该滤波器采用改进的Di Zenzo梯度算子,即QHFIDZ。它将彩色图像预处理为四元数Hardy滤波器,降低了噪声效果,然后将改进的Di Zenzo梯度算法应用于边缘图。所提出的技术是用于与其他图像检测技术比较的噪声图像检测的鲁棒算法。
URL
https://arxiv.org/abs/1807.10586