Shounak Shastri

Last seen: mer än 3 år ago | Active since 2014

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Averaging z values for xy gridded data
Hello Ara, So the brute force implementation would be to run a search through your data and check the lat and lon values. If th...

ungefär 4 år ago | 0

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how do I substitute all negative values in a vector with a random number between 0 and 2
The simplest (but not the most efficient) way to do this would be to inititalize a for loop and run through all the elements one...

mer än 4 år ago | 0

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How do I compute the correlation between corresponding rows of two matrices?
From what I know, Correlation Matrices are usually square. As in you have 10000 rows with 60 elements in each row. So if you tak...

nästan 6 år ago | 0

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How to xor key with the element by element in an array?
Here, try this I = randi([1,10],5); %Input matrix [m, n] = size(I) %Size of the input matrix for loo...

ungefär 6 år ago | 0

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Error using mex: No supported compiler or SDK was found
You need to download and install a compiler first. Go to the add-ons and click on get add-ons. You will get a list of add-on...

ungefär 6 år ago | 0

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How to plot multiple Y in the form of samples in the same X
Try this, plot(x1, y1, 'r*', x2, y2, 'yo', x3, y3, 'ks'); Here, I have taken (x, y) from a1 as (x1, y1), (x, y) from a2 a...

ungefär 6 år ago | 0

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Could anyone tell me how to omit zero values while plotting the graph
You can try this A1 = A(A ~= 0); % Removes the zeros from A plot(A1); hold on; plot(B); hold off; Hope this helps...

ungefär 6 år ago | 0

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Construct a square wave
I cannot give you the exact code because its a homework assignment. But this should lead you towards the answer. So the signa...

ungefär 6 år ago | 0

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How to subtract Black and White image from RBG Original image.
You cannot subtract the image because the two images are of different dimensions. You can check this in your workspace. Consider...

ungefär 6 år ago | 0

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How do I make my data from a while loop into a table of vectors?
"How do I make my data from a *while loop* into a table of vectors?" I have modified the code you gave in your question. ...

ungefär 6 år ago | 0

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Type of license file
It depends on what license your institution uses. For example, our institution uses an academic license for total headcount ...

ungefär 6 år ago | 0

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Compare the result of loop
Add a temp variable in your code and store the new UtilityD value in temp. At the end you can just add a if statement as foll...

ungefär 6 år ago | 0

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How to compress a location map using JBig compression?
This code from what I know is from <https://in.mathworks.com/matlabcentral/fileexchange/5104-toolbox-wavelets> toolbox. Down...

ungefär 6 år ago | 0

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i have applied huffman coding and decoding from matlab/simulink for digital communication by won y yang
Usually compression doesn't work well for data which has uniform distribution. Almost all natural images follow this trait. You ...

ungefär 6 år ago | 0

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Signal Phase using FFT
_"I have to extract the phase of the signals and the average phase displacement using FFT"_ Use the "fft" and the "fftshift" ...

ungefär 6 år ago | 0

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How to save whole output of the script? (387 figures grouped into one figure window, each figure in its own tab)
I think you might find a clue here, <https://in.mathworks.com/matlabcentral/answers/228691-organize-several-figures-using-tab...

ungefär 6 år ago | 0

Answered
how to convolute two discrete impulse functions
x[n]= -delta[n+1] + 0.5delta[n] + 2delta[n-1] h[n]= 2delta[n] + delta[n-1] _"I don't know how to write the two signals in ...

ungefär 6 år ago | 1

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convolution of two unit step functions.
*1.* The first thing you need to know is that in Matlab, the array index starts from 1 and not from 0. So if you write x(0)=1, y...

ungefär 6 år ago | 1

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Hi all! Is there a way to initialize row vectors like this:
_"No, it's a single row vector."_ Based on this I will assume that R,G and B are also row vectors. Say, x=1:30 You...

ungefär 6 år ago | 1

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Process an image depending of the peaks of its histogram
*"I'm looking for a matlab function that let me analyse different regions of an image depending of the peaks of its histogram."*...

ungefär 6 år ago | 0

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How to fix: "Index exceeds matrix dimension"
You are not updating H(i+1) in your while loop. "i=1; H(i)=Hs;" This line creates an array named "H" of size [1, 1] whi...

ungefär 6 år ago | 1

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How to XOR the pixel values of image with a matrix containing decimal numbers?
_"I am using color image."_ Lets say your input image is I. I = imread ('image.tif'); If you check the workspace aft...

ungefär 6 år ago | 0

Question

How does bsxfun actually work ?
I tried to multiply two matrices using bsxfun. Here is a sample code. a = [0,1]; b = [1,2]; q = bsxfun(@times, a, b); ...

ungefär 6 år ago | 2 answers | 0

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How to obtain a path traced by a line plot which has been superimposed on an image ?
I have an image which has been divided into blocks of 2x2 pixels and a line plot of some randomized points. I want to superimpos...

ungefär 9 år ago | 0 answers | 0

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Error: subscripted assignment dimension mismatch during convolution.
I am writing a code for convolution of rows of a 256x256 matrix with a column vector consisting entirely of ones. But I am getti...

nästan 10 år ago | 2 answers | 0

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Question

Is there any way of stopping the execution of a program in the middle ?
My code is now running for 10 minutes. Is there any way i can pause or stop the execution and see the current status of my va...

nästan 10 år ago | 1 answer | 0

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How to create a vector in which numbers increase at first, then remain constant, then reduce back to 1 ?
I need to create vectors of length 255 which have the following format: {1,2,3,4,5,5,5,5,......,5,5,4,3,2,1} {1,2,3,4,5,...

nästan 10 år ago | 3 answers | 0

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How to plot a 2D histogram of pixel pairs ?
I have a 'M by 2' matrix consisting of pixel pairs in an image. I want to find which pixel pairs occur more frequently. For this...

ungefär 10 år ago | 2 answers | 0

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Is it normal for a code with 2 nested for loops to run for more than 2 hours ?
I have a color image and I am using two for loops to separate pixel pairs. Its been running for the past 2 hours. Is it normal ?...

ungefär 10 år ago | 1 answer | 0

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How do I know the frequency of each unique pair?
*Edited by Azzi after Shounak changed his question* I have a uint8 matrix nx2, I want to know the frequency of each unique pa...

ungefär 10 år ago | 2 answers | 0

2

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