Susant Kumar Panigrahi

7 Questions 11 Answers 0 Followers

Questions related from Susant Kumar Panigrahi

What is the difference between 'imnoise' of MATLAB and "noisy_image = original_im + sqrt(variance)*randn(n,m) + mean"?

Hi, I know in MATLAB 'imnoise' command scale the image between [0,1], so the noisy image that generates using the following command "noisy_image = imnoise(Original_im,'gaussian',0.1)" with...

12 December 2014 4,964 3 View

Does anyone have experience with the Matlab Implementation of the Fast Multipole Method?

Can any one please provide me the (Link) MATLAB code for fast multipole method. It would be better if the program contained an example to demonstrate the implementation of the code. Thanks, Susant

07 July 2014 3,658 2 View

Is Time-Frequency Joint Representation of a signal for Discrete Haar Wavelet Transform possible ? If yes, Then How ?

As Haar is multi-resolution technique (MRA) for signal representation, i.e the window used in Haar is not constant unlike STFT. Hence it is very easy to identify the variation of signal's...

06 June 2014 6,591 3 View

What is unequally spaced fast fourier transform (USFFT)?

Can anyone please give an example of an unequally spaced signal? If possible please suggest me any paper regarding the understanding of USFFT and its algorithm.

05 May 2014 3,965 6 View

How to measure similarity or dissimilarity between two data set?

How to measure similarity between two data vectors, as like "Correlation coefficient".

12 December 2013 2,678 14 View

Do you know of a database to test image thresholding to separate object from background?

I have implemented some thresholding methods and need some standard database for testing. Can someone suggest some sites for classification of image object and background? It will be better if the...

12 December 2013 2,518 5 View

Relation between data cluster and ROC curve parameter?

I have a bunch of methods for image thresholding and, I created a reference image without using any ground truth from the existing methods (Say the mean of all thresholded value of an image is the...

08 August 2013 1,093 5 View