Smoothing or blurring images in openCV Leave a Comment / OpenCV, Programming / By Aims Creation / April 8, 2021 April 8, 2021 / Bilateral Filter, Gaussian filter, Homogenous filter, Median Filter Smoothing or blurring of the most commonly used techniques for image processing. It is used to suppress the noise of the pictures. Linear filters are used for smoothing. The linear filters are simple to use and quick.