【摘要】 尝试把梯度和散度的概念引入到图像分析中 ,基于梯度和散度的积分定义 ,给出了计算图像梯度散度的、与坐标选取无关的简易近似公式。并将它们应用到带噪数字图像中 ,利用梯度与散度的配合进行边缘提取 ,同时给出了实验结果。更多还原

【Abstract】 Gradient and divergence are introduced into image analysis.Based on the integral definition of gradient and divergence, an easier approximate discrete expression of them is presented, which is independent of the coordinate.Furthermore,the gradient and divergence are applied to edge detection of noisy images.Corresponding experiments are also given.更多还原