OpenCV에서 제공하는 2D 이미지에 적용 가능한 선형, 비선형 필터링 함수들에 대해 알아보자. https://docs.opencv.org/4.x/d4/d86/group__imgproc__filter.html OpenCV: Image FilteringFunctions and classes described in this section are used to perform various linear or non-linear filtering operations on 2D images (represented as Mat's). It means that for each pixel location \((x,y)\) in the source image (normally, rectangular), its neigd..