Image Processing Toolbox User's Guide

Linear Filtering and Filter Design

The Image Processing Toolbox provides a number of functions for designing and implementing two-dimensional linear filters for image data. This chapter describes these functions and how to use them effectively.

Linear Filtering	Provides an explanation of linear filtering and how it is implemented in the toolbox. This topic describes filtering in terms of the spatial domain, and is accessible to anyone doing image processing.
Filter Design	Discusses designing two-dimensional finite impulse response (FIR) filters. This section assumes you are familiar with working in the frequency domain.

Using Correlation to Improve Control Points Linear Filtering