循环细分方法提取图像边缘

Extracting Fringes over an Image with Loop Subdivision

图像边缘提取是图像处理的一个重要主题,基于图形学中的循环细分方法提取图像的边缘,即假设P0是一图像的内点,由P0引出的直线交得局部边缘的边缘点,通过多次由相邻两边缘点细分直至提取整个图像的边缘。在理论上讲,该方法比扫描法和腐蚀算法等具有算法的高效性和边界的连续性。

Extracting fringes over an image is an important issue about image processing.It is based on loop subdivision to extract the fringes for a digital image.First,there is a given interior point for an image,we can get two consecutive points of intersection of the fringes via straight line drawn from the interior point.By repeatedly extracted about every two consecutive points in the fringes until the entire edge of the image.In theory,this method has more effective than the scanning method and corrosion algorithm.