How to choose Gaussian filter size based on standard deviation value?

Piyush Joshi @Piyush_Joshi8

05 May 2016 1 2K Report

Is there any relationship between Gaussian filter size and standard deviation value?

Amir Baig

According to implementation of MATLAB function imgaussfilt, it is defined as

filter size=2*ceil(2*standard deviation)+1

Badges
Science topic

More Piyush Joshi's questions See All

For what conditions can logistic regression can be used?

There are many models for regression. In what conditions, logistic model can use?

05 June 2015 7,618 3 View

Why we get negative wavelet coefficient?

what is significance of negative value of wavelet coefficient.

04 May 2015 6,393 3 View

CLAHE: which clipped pixels are distributed among grey levels in clahe algorithm?

if you have way too many pixels with gray level 123 (let'ssay 500,000 of them) and you want to reduce it (say to 100,000 pixels with gray level 123) then you're going to have to pick 400,000...

01 February 2015 4,370 1 View

My frequency output shows no errors, however, there's no frequency as a result on gausview. Does anyone know what I'm doing wrong?

I'm trying to perform a frequency calculation using Gaussian via MOBAXterm. The output shows no errors, however, there's no frequency as a result on gausview. The option "vibrations" is not...

31 July 2024 631 4 View

What change would occur in physics if the three different sizes of the proton and the two sizes of the deuteron accepted as new physical constants?

For people today, the enigma of the size of the proton still remains enigmatic. However, being myself a researcher in new physical theory which makes it possible to extend the different standard...

28 July 2024 7,823 1 View

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program?

How can we calculate the percentage of configuration interaction (CI) in the UV output data of the Gaussian program? for example: Excited State 17: Singlet-A 5.1359 eV 241.41 nm...

28 July 2024 9,165 2 View

Standard curve of H2O2?

Hi, I need to prepare a standard curve of H2O2 to evaluate the primary products of oxidation. H2O2 I have is 35%. How do I prepare a stock of H2O2 10 microlitere. If s.o has experience, I would be...

26 July 2024 3,460 2 View

Getting standard errors and T-statistics for Dynamic panel data with instrumental variable method?

Dear all, I have a user written estimation code based on the paper dynamic panel data estimations with fixed effect by Galvao(2009). I have seen many papers using this method and pvalue, standard...

22 July 2024 4,588 1 View

Is is possible to calculate the activation energy of Redox Reactions Using Gaussian?

Hi everyone, I'm working on calculating the activation energies for some redox reactions using Gaussian, Here are the reactions I'm interesting: Py•−+ 3O2 → Py + 3O2•− Py•− + 1O2 → Py + 1O2•− Is...

18 July 2024 4,417 3 View

Please, from the computational calculations of an organic compounds using Gaussian program?

Using DFT/B3LYP/6-311++G

17 July 2024 7,720 1 View

What is wrong with my input file?

im studing gaussian 16 with reading paper about I-131 Metaiodobenzylguanidine in the paper "In a similar vein, nuclear magnetic resonance shielding values were investigated using the widely...

16 July 2024 6,040 4 View

What does absolute and relative ir and raman activity means .and what the measurement formula?

I have ftir from gaussian output file.where ir aand raman are given. However in many research articles value of ir and raman are classified into two portion. Please anyone knows suggest me to how...

11 July 2024 2,498 1 View

Validated HPLC method for the estimation of the Amphotericin B ?

During the release test of Amphotericin B using 1% Tween 80, i observed three peaks even in the standard. The first peak consistently yielded results around 500%, while the other peaks showed...

08 July 2024 1,330 0 View