CAJ | 학술논문

根据数字图像处理中现有边缘检测算子，对连续边缘的检测及抵抗噪声的能力问题，提出一种基于方形函数的测算法。首先将目标图像划分成方形的采样网格；然后确定检测的起始点位置，利用图像边缘处内外灰度差值最大原理判定该方形区域边缘所在的切线位置；最后通过多个区域的并集取得图形边缘。实验证明通过该算法可以提取出较为完整的边缘，抗噪能力也优于以往的边缘检测方法。
근거수자도상처리중현유변연검측산자，대련속변연적검측급저항조성적능력문제，제출일충기우방형함수적측산법。수선장목표도상화분성방형적채양망격；연후학정검측적기시점위치，이용도상변연처내외회도차치최대원리판정해방형구역변연소재적절선위치；최후통과다개구역적병집취득도형변연。실험증명통과해산법가이제취출교위완정적변연，항조능력야우우이왕적변연검측방법。
According to the ability of continuous edge detection and noise resistance of existing operators, a new edge detection operator based on square function is proposed. First, the target image is divided into square sampling grids. Then the position of start point is determined,and the tangent position is found out maximum by the gray scale differ-ence at the edge of the inner and outer areas. Finally,the edge of the target is obtained by integrating the same areas. Experiments show that a rather complete edge can be extracted in this way and the noise resistance ability seems stron-ger.