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Impulse Noise Addition

version (892 Bytes) by Kannan Keizer
Adding impulse noise to image


Updated 01 Dec 2008

No License

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.

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Cite As

Kannan Keizer (2019). Impulse Noise Addition (, MATLAB Central File Exchange. Retrieved .

Comments and Ratings (4)

Lee Yao


think you


think you

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.


Modified based on Cris Luengo' comments.

MATLAB Release Compatibility
Created with R2006a
Compatible with any release
Platform Compatibility
Windows macOS Linux