DoG
代码说明：
高斯模糊是一种图像滤波器，它使用正态分布(高斯函数)计算模糊模板，并使用该模板与原图像做卷积运算，达到模糊图像的目的(Gaussian blur filter is a kind of image, it uses the normal distribution (gaussian function) to calculate fuzzy template, and use the template and the original image for convolution operation, achieve the goal of blurred image )
文件列表：
DoG
...\checkExtrema.asv,240,2009-11-26
...\checkExtrema.m,298,2009-11-27
...\DoG.m,1313,2012-06-06
...\drawExtrema.m,939,2009-11-26
...\Extrema.asv,410,2009-11-25
...\getExtrema.m,565,2009-11-30
...\im2.jpg,73669,2009-11-27
...\im3.jpg,72713,2009-11-27
...\im4.jpg,74763,2009-11-27
...\im5.jpg,73101,2009-11-27
...\lena.png,272734,2009-11-26
...\nickyboom.jpg,51682,2009-11-26
...\orion.jpg,76459,2009-11-26
...\Process.m,367,2009-11-26
...\sn.jpg,66476,2009-11-26
...\test.png,12595,2009-11-26
...\Tulips1.jpg,88255,2009-11-25
...\ValveOriginal.png,661141,2009-04-23
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