一种基于偏微分方程的PCB图像增强方法

摘要

The traditional image enhancement method of printed circuit board (PCB) image preprocessing is difficult to step to achieve contrast enhancement and noise reduction. A method of image enhancement based on PDE is put forward, and the concrete realization of the process is given. The method uses TV model and histogram equalization to achieve integration, and can enhance the contrast while retaining the effective edge. The simulation results show that the algorithm is superior to the traditional method first by enhancement, noise reduction after and first by noise reduction, enhancement after method.%针对传统的图像增强方法对印刷电路板(PCB)图像进行预处理时难以一步实现去噪和增强对比度的问题,提出了一种基于偏微分方程的图像增强方法,并给出了具体实现过程.该方法采用基于TV模型的降噪与直方图均衡化相结合来实现,在增强对比度的同时保留有效边缘.仿真实验表明了该算法优于传统的先增强、后去噪和先去噪、后增强的方法.