How to remove Noise using histogram In Matlab

7 vues (au cours des 30 derniers jours)
Stephen john
Stephen john le 28 Août 2022
Commenté : Stephen john le 29 Août 2022
Hello Everyone, i hope you are doing well. I have the following data in which I have some noise. I want to remove the Noise using Histogram or any other Method. I have attached the picture below which is the noise.
How can i do that?

Réponses (1)

Abderrahim. B
Abderrahim. B le 28 Août 2022
Below is a workflow based on groupcounts function:
load noisydata.mat
plot(dataset, 'o')
title("noisy data")
% Filtering based groupcounts
[GC, GR] = groupcounts(dataset) ;
denoisedData = dataset(ismember(dataset, GR(GC>10))) ; % group that has count less than 10 will be removed
plot(denoisedData, 'o')
title("denoised data")
Hope this helps
  14 commentaires
Abderrahim. B
Abderrahim. B le 29 Août 2022
I understand, try other filtering methods. This method - based find groups count requires to set a threshold for filtering.
Stephen john
Stephen john le 29 Août 2022
@Issa Can you help me with this using Histogram?

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