2D Gaussian filter는 Separable 하기 때문에 이를 이용하면 다음과 같이 연산량을 줄일 수 있다. n addition to being circularly symmetric, the Gaussian blur can be applied to a two-dimensional image as two independent one-dimensional calculations, and so is termed separable. That is, the effect of applying the two-dimensional matrix can also be achieved by applying a series of single-dimensional Gaussian matrices in the horiz..