|Image Processing Toolbox User's Guide|
Using Linear Filtering
You can use linear filtering to remove certain types of noise. Certain filters, such as averaging or Gaussian filters, are appropriate for this purpose. For example, an averaging filter is useful for removing grain noise from a photograph. Because each pixel gets set to the average of the pixels in its neighborhood, local variations caused by grain are reduced.
See Linear Filtering for more information.
|Noise Removal||Using Median Filtering|
© 1994-2005 The MathWorks, Inc.