适用于光照不均匀图像的边缘检测算法

An edge detection method insensitive to light variance in image

首先利用图像梯度方向特征改进Canny算法,使之更适合连续边缘的检测。然后将其与基于侧抑制原理的图像增强算法结合,设计了一种新的适用于噪声背景下光照不均匀图像的边缘检测算法。算法实验结果表明该边缘检测算法能有效提取光照不均匀图像中的连续边缘。

A new edge detection algorithm is proposed to extract edges out of non-uniform weak illuminated images. First, improve the Canny algorithm using the direction of the gradient, making it more capable of detecting continuous edges. Then combine it with the image enhancing method based on lateral inhibition mechanism. Real image experiment shows that this edge detection method can extract continuous edges from no-uniform illuminated images effectively.