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Impulse Noise Addition

by Kannan Keizer

18 Nov 2008 (Updated 01 Dec 2008)

No BSD License

Adding impulse noise to image

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File Information

Description

This function can be used for adding different kind of impulse noises (i.e. Salt & Pepper noise and Random-value impulse noise) to image.
Salt & Pepper Noise values are 0 or 255 but random-value impulse noise values vary from 0 to 255.

website : http://kannan.keizer.googlepages.com

Required Products

Image Processing Toolbox

MATLAB release

MATLAB 7.2 (R2006a)

Tags for This File
Everyone's Tags	image processing, impulse noise, randomvalue impulse, signal processing
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Comments and Ratings (1)
01 Dec 2008	Cris Luengo	1st: you're using incorrect statistics when you change the output of RAND the way you do (setting 0 values to 1 and dividing by the max value). Just use the output of RAND directly in your comparisons, that is what RAND is designed for. 2nd: A function that asks to enter a choice every time it is run is inconsistent with all the other functions in MATLAB (and annoying), the choice should be an input parameter to the function. Also, you could provide default values for the ND and D parameters. 3rd: There is no need to output the result to a figure window. Let the user decide whether they want that or not.

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Updates
01 Dec 2008	Modified based on Cris Luengo' comments.

Tag Activity for this File
Tag	Applied By	Date/Time
signal processing	Kannan Keizer	18 Nov 2008 14:37:02
image processing	Kannan Keizer	18 Nov 2008 14:37:02
impulse noise	Kannan Keizer	18 Nov 2008 14:37:02
randomvalue impulse	Kannan Keizer	18 Nov 2008 14:37:02

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