Noise estimation from rician noise corrupted images

This program can be used for estimating noise from an image corrupted with rician noise (eg: MRI)

Version 1.1.0.0 (36.9 KB)
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22 Apr 2016

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Estimates the noise standard deviation from an (MRI) image (2D) corrupted with Rician noise based on the skewness of the distribution. This method doesn't depend on the background for noise estimation. Can be used for MR images with and without background.
Ref: Jeny Rajan, Dirk Poot, Jaber Juntu and Jan Sijbers, "Noise measurement from magnitude MRI using local estimates of variance and skewness", Physics in Medicine and Biology, Vol 55, N441-N449,2010.

Cite As

Jeny Rajan (2026). Noise estimation from rician noise corrupted images (https://www.mathworks.com/matlabcentral/fileexchange/28779-noise-estimation-from-rician-noise-corrupted-images), MATLAB Central File Exchange. Retrieved .

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General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
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Version Published Release Notes
1.1.0.0

adding BSD license
added the polynomial expression of the lookup table mentioned in the program.
1.0.0.0