摘要
对于彩色图像边缘检测技术给出了一种基于改进的梯度算子和RGB颜色空间色差函数的边缘检测算法。该算法首先使用改进的梯度算子得到RGB颜色空间中各个分量的梯度值,然后使用一个新的色差函数计算中心像素与邻域像素之间的色差距离,最后结合梯度值和色差距离,综合判断得到完整的彩色图像边缘信息。实验表明该方法是有效的和鲁棒的。
A new algorithm for edge detection in color images is proposed,which is based on improved gradient operators（IGO） and a new color difference function in the RGB color space.The proposed method firstly uses improved gradient operators（IGO） to get the gradient value for R,G and B color components separately.Then a new color difference function is taken to calculate the distance between the center and neighboring pixels.Finally,the edge information is obtained by a simple judgment algorithm combining the gradient and color difference values.The experimental results show that the proposed algorithm is effective and robust.
出处
《浙江理工大学学报（自然科学版）》
2012年第3期399-403,共5页
Journal of Zhejiang Sci-Tech University(Natural Sciences)
关键词
彩色图像
边缘检测
梯度
色差
color image
edge detection
gradient
color difference
