xiaoshijie2016的博客

学一门科目总是有很多的理论讲解，公式推导，总感觉这和实际应用很少沾边，学起来总是很枯燥。那么这些枯燥的理论到底有用吗？下面就以冈萨雷斯的数字图像处理这本书为例来介绍一下理论之于实践的地位。

Fourier transform of the convolution of two functions in the spatial domain is equal to the product in the frequency domain of the Fourier transforms of the two functions. If we have the product of the