Dears,
what is the best way to add any kind of noise (not only Gaussian noise) to 2D signal (image) for a given SNR? Do you know a good code in Matlab?
I suggest you may ENJOY https://au.mathworks.com/help/comm/ref/awgn.html
https://au.mathworks.com/help/images/ref/imnoise.html
https://au.mathworks.com/matlabcentral/answers/126329-problem-to-add-gaussian-noise-to-image
If A is the image, then for a given nsr, noise variance n_var is given by :
nsr = n_var / var(A(:));
Then noises which are specified by variance values can be added :
J = imnoise(A, 'gaussian', n_mean, n_var)
J = imnoise(A, 'speckle', n_var)
I have been setting up the tube furnace to work with inert atmosphere, i.e. H2 and N2 in order to anneal the iron-based metallic powders. The furnace is equipped with vacuum pump as well. The...
18 December 2020 4,006 2 View
Dears, could you recommend the papers in which the types of noise in MRI images were analyzed?
05 September 2020 2,810 4 View
Hi, I'm aware of numerous Explainable AI (XAI) solutions for CNNs, however they ~all seem to be tailored for classification (or segmentation). I also see that for a small home-made model (lets...
31 March 2020 5,082 5 View
Most of us experience far-reaching restrictions on private and public life, introduced by governments all over the world because of the coronavirus epidemic. Generally, these restrictions make a...
22 March 2020 6,992 95 View
Hi, Under 9 CFR 430, establishments in Alternative 2b and 3 are required to sample food contact surfaces for Listeria monocytogenes or an indicator organism....
10 March 2020 6,762 4 View
Should I perform such processing step before any analysis i.e. by using pseudo-invariant features (PIFs)?
30 January 2020 6,549 2 View
Assuming that particle consists of a photon that moves circularly in the loop, creating standing wave obeying the rule that its closed path 2*Pi*R=n*Lambda (1) (resonator where resonator length...
15 October 2019 8,759 12 View
What criteria can be applied to define friendship? Is friendship an object of scholars'/philosophers' thinking? And what does it mean that someone is someone's friend? What are the qualities of...
02 August 2019 6,716 24 View
Is it necessary to accept the idea of God established by a given religion to believe in the existence of God? Does belief in the existence of God inevitably involve the adoption of an ethical...
31 July 2019 4,599 97 View
Hello, I'm writing a meta-analysis of prevalence in R. Using the influence() function I determined that two of the included studies are outliers. I would like to check if the outcome of the rma()...
23 July 2019 5,799 3 View
I have selected brain tumor images ...but now found that already lots of research done n this topic.
03 March 2021 5,774 3 View
i am try to classify the x-ray images. During classification , can i block unwanted images (except x-ray image).
03 March 2021 7,100 1 View
Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru
02 March 2021 1,787 2 View
Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...
02 March 2021 1,757 4 View
Dear Colleagues, After running Western blot on PVDF membrane and detection using ECL, I would like to stain my PVDF with colloidal gold to be able to allign the ECL image with total proteins on...
02 March 2021 7,829 3 View
I would like to research on MR images (0.5T and 3T). Can you please suggest some websites that I can download dataset including both 0.5T and 3T MR images? Thank you.
02 March 2021 7,735 3 View
Hello, I have classified 10 S3 OLCI images from the same area (althouth not the same size and/or quadrant) and I would like to do a final image using the mode of the pixel of these 10 images. I...
01 March 2021 9,874 3 View
I'm looking at the aggregation of my protein sample using DLS. Unfortunately, my buffer (20mM HEPES) also results in a set of peaks. These are at approximately 1 and 1000 d.nm. The lowest peak...
01 March 2021 9,015 2 View
The following code (see 1st 2 images attached) is used to produce PID controller values that are designed to control the system (G). The code finds the PID controller values (noted as k) by using...
28 February 2021 6,560 14 View
I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...
28 February 2021 552 3 View