How to do noise analysis of input signal?

hey, i need to do noise analysis(mainly for flicker noise) of input signal which contains noise. i don't understand analysis means exactly what i need to do? which parameters should be analyse and how?? and also i need to separate the detected or analysed noises. how to proceed??

Answer 1

[Iain]

You should figure out "what flicker noise means" - I would take (temporal) noise to be the RMS variation from the expected value of the signal. But that's not just flicker noise....

Answer 2

[Image Analyst]

For flicker noise, like in a video where some frames are brighter or darker than the prior or subsequent frames, you can take the difference between a frame and the average of its neighboring frames. If the difference is small (a number you decide upon that is "normal") then there is no flicker but if the number is higher or lower then the frame is brighter or darker. You can take a histogram of differences to determine if the flicker is brighter or darker than the "good" frames, assuming the flickered frames are less than 50% of the frames.

[Life is Wonderful]

Can you please help me with flicker frame detection for the issue in the below link

https://www.mathworks.com/matlabcentral/answers/507386-remove-noise-in-video

Thank you!

[Life is Wonderful]

@Image Analyst

Do you have any feedbeack here ? Or my question is not clear / I am I missing or not clear

Thank you!