通过拉普拉斯滤波器，高斯微分滤波器以及高斯差分滤波器提取图像边缘的简单matlab代码-Filter by Laplace, Gaussian derivative filters and difference filter from the edge of Gaussian simple matlab code

Laplacian Pyramid Blending 提取两幅图像的重要信息进行图像混合的算法 拉普拉斯差值图，差值图重建-Laplacian Pyramid Blending two images extracted important information for image hybrid Laplace difference map algorithm, the difference map reconstruction

由于噪声点(灰度与周围点相差很大的点)对边沿检测有一定的影响，所以效果更好的边沿检测器是高斯拉普拉斯(LOG)算子。它把我们在第3章中介绍的高斯平滑滤波器和拉普拉斯锐化滤波器结合了起来，先平滑掉噪声，再进行边沿检测，所以效果会更好。-As the noise points (points, a big difference with the surrounding gray points) on the edge detection to a certain extent, the effect

图像的锐化处理,锐化处理方法有水平垂直差分法、罗伯特差分法、拉普拉斯差分法等-Sharpening processing method has horizontal and vertical difference, Robert difference method, Laplace differential method. See in particular section 4.3 book.