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Raunak Gupta


Last seen: Today

MathWorks

240 total contributions since 2019

I am an Application Support Engineer in the EDG Group, The Mathworks. My main responsibilities are to working with customers to help solve their problems and developing new MATLAB Features.
My Area of Interest are MATLAB and Signal Processing.

DISCLAIMER : Any Advice or opinions here are my own, and in no way reflect that of Mathworks.

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Answered
Separating features using imopen with bright and dark features.
Hi, I can suggest two approach to do the same. You may use contrast enhancement first followed by morphological techniques s...

4 hours ago | 0

Answered
Normalize Multiple Outputs of Regression Network
Hi, The documentation link that is mentioned in the question is valid for feedforwardnet and that normalization works for vect...

6 hours ago | 0

Answered
"removedelay" and predicting
Hi, From the documentation of removedelay I can see that the prediction on Nets in question will result in output of one-time ...

7 hours ago | 0

Answered
Deep Learning AudioData Set Google Download
Hi Marcello, The video you mentioned in question uses the documentation example provided here. In the example, exact link of t...

1 day ago | 0

| accepted

Answered
Index exceeds number of array elements error
Hi, As suggested by Rik in comments and tried by me length of the input string must not return any error statement. So cell2ma...

1 day ago | 0

Answered
Vectoring the blurring of an image, with use of a kernel
Hi, Without Toolboxes such as Image Processing Toolbox I see the only way achieving the kernel multiplication with the help of...

1 day ago | 0

| accepted

Answered
How does 'InBagFraction' work in Treebagger?
Hi, The ‘InBagFraction’ is a fraction of input data to be used while creating a new tree. It has nothing to do with amount of ...

2 days ago | 0

Answered
What is the difference form using TreeBagger and Fitrensemble functions
Hi, In above case the output model as well as result will be different because both TreeBagger and fitrensemble uses different...

25 days ago | 1

Answered
DFT of sine wave
Hi, It looks like ‘df’ in the above code can be set to ‘pi/8’ to represent time shift in original signal. Other than that ever...

25 days ago | 0

Answered
how can i write such code using vectorisation
Hi, You may find below code useful to solve above question. x = 0:pi/100:8*pi; y = sin(x); y(y<0) = 0;

25 days ago | 1

Answered
Matlab2020a installation error on linux
Hi, There are a wide number of things which can cause errors such as this to appear. Some previous instances of this have appe...

26 days ago | 1

| accepted

Answered
Selecting Threshold from multithresh
Hi, The multithresh will return multiple threshold value in a vector to be used. Since you want to use only a single threshold...

26 days ago | 1

| accepted

Answered
Setting constants for different projectiles with a for loop?
Hi, As mentioned by @darova, you can vectorize the code instead of using if-else loops. Below code might help. global m cd A ...

26 days ago | 0

Answered
How do I code for a buttom grpup using the tags i made for them
Hi, From the question I assume you have the GUI ready for displaying original image to a UI Axes in App Designer. For plotting...

26 days ago | 0

Answered
Using loop to read column from excel sheet
Hi, You can use readmatrix instead of xlsread. readmatrix will return a matrix from the ‘.xlsx’ file that will contain column ...

26 days ago | 1

| accepted

Answered
Uni told us that we have free MatLab till 30.6.2020 but it says: Unfortunately, we were unable to find a match for a MATLAB and Simulink Campus-Wide License based on the email address you provided.
Hi, You can contact your sales representative to get detailed understanding about your license terms. If you don't know who yo...

26 days ago | 2

Answered
More efficient way of analyzing the Fourier transformation of an image?
Hi, From the code I see that ang for loop doesn’t seems to have dependency between the iterations on the data values, so maybe...

26 days ago | 1

| accepted

Answered
How is the quality of audio file when PSNR is more than 48?
Hi, In the code you have mentioned that PSNR = 20*log10(MAXVAL/MSE); This means PSNR = 20*log10(MAXVAL) - 20*log10(MSE)...

26 days ago | 0

Answered
Cumulative distribution fitting with an equation
Hi, From the question I assume you first want to fit a distribution to the data that you have attached according to parametric...

26 days ago | 1

Answered
How can I run the distributionfitter automatically?
Hi, The distributionFitter app is essentially used for fitting distribution to the data that you have. You can get the same pr...

27 days ago | 1

Answered
How to convert optical flow to feature matrix in videos
Hi, I am unsure about what you want to classify in the video using the optical flow estimation workflow. As per my understandi...

27 days ago | 1

| accepted

Answered
Fresnel diffraction at an angle
Hi, I assume the above code is taken from Fresnel Propagation using the Transfer function File Exchange Submission. Since I di...

28 days ago | 0

Answered
Find three in a row
Hi, You can take a look at Image Analyst Answer for creating a random number generator. As from the question I assume you a...

28 days ago | 0

Answered
Extract information from Label images labeled with Image Labeler and use it in semantic segmentation deep learning
Hi, Let me clear the specific doubts. I am assuming the square you are mentioning must be rectangle. Since rectangle is used...

28 days ago | 0

| accepted

Answered
How to write a phase plane in matlab?
Hi, I have compiled some code which essentially plot the same figure you have. For plotting the straight lines, you must choos...

28 days ago | 0

| accepted

Answered
DeepESNs with multiple sub-reservoirs
Hi, There is a submission on File Exchange DeepESN which give a good starting point to code the tweak you want in Deep Echo St...

28 days ago | 0

| accepted

Answered
How to get probabilities of each class which is classified with RUSBoost for an imbalanced data set
Hi, The reason behind predict not returning scores as probability estimates is because the ‘RUSBoost’ algorithm used in the mo...

28 days ago | 1

| accepted

Answered
3D Point Clouds: "findPointsInROI" and "select" not working
Hi, From the file I can see that the point cloud that is read is essentially an organized point cloud. So, it is a single poin...

28 days ago | 1

| accepted

Answered
I am trying to find the dominant poles without using a for loop...
Hi, I don’t see any for loop in the code that is provided with the question, however if there is a for loop you can always wri...

29 days ago | 0

Answered
Is there anything about face emotion recognition?
Hi, I found a submission on File Exchange Face, Age and Emotion Detection that essentially use pretrained network capabilities...

29 days ago | 1

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