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Impulse Noise Addition

18 Nov 2008 (Updated 01 Dec 2008)

Adding impulse noise to image

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)

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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.

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