Slide 1 Linear filtering Slide 2 Motivation: Image denoising How can we reduce noise in a photograph? Slide 3 Let’s replace each pixel with a weighted average of its neighborhood…

Linear filtering Motivation: Noise reduction Given a camera and a still scene, how can you reduce noise? Take lots of images and average them! What’s the next best thing?…

Introduction Linear filtering 1 Motivation: Image denoising How can we reduce noise in a photograph? 2 Answer: take lots of images, average them Let’s replace each pixel…

Image Filtering Image Filtering Overview of Filtering Convolution Gaussian filtering Median filtering Overview of Filtering Convolution Gaussian filtering Median filtering…

Linear filtering Motivation: Noise reduction Given a camera and a still scene, how can you reduce noise? Take lots of images and average them! What’s the next best thing?…

CSE 185 Introduction to Computer Vision Image Filtering: Spatial Domain Image filtering Spatial domain Frequency domain Reading: Chapters 3 3D world from 2D image Analysis…