Image Filtering Explorer
Introduction   Demo   Investigate   Reading   Credits   Home

Introduction

This application explores filtering images. One can use several types of filters to see their effects. One can also add noise to an image and see the effectiveness of a filter for removing it.

The tool

Like the Image Spectrum Explorer, this demonstration has two windows: one to display the image, and the other to present spectral information about the image. The larger colorful plot on the left is the two-dimensional Fourier transform of the entire image. After loading an image choose a filter, the size and direction for its application (horizontal, vertical, kernel), and apply. You can also apply two types of noise to the image to see their effects to the image.

Things to investigate

1. Load an image and apply Salt & Pepper noise with an incidence less than 0.1. What filters and settings are best for removing this noise?

Further reading

Credits

Produced by Bob L. Sturm and Dr. Jerry Gibson.
Release date: February 2, 2004
Copyright 2003 University of California, Santa Barbara