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# MSP

Last seen: 1 year ago Active since 2016

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Question

Roi to a 1D array in matlab
How do i select a ROI using mouse in an image (imagesc plot) and get the content of the roi in a 1d vector? I needed help on tha...

1 year ago | 0 answers | 0

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Question

Subplot according to Real size
Greeetings people, I am having an issue regarding plotting according to the real size.I am trying to explain according to this ...

2 years ago | 1 answer | 0

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Question

How suppress Background noise?
Hello, I just recorded a voice signal and it has the background noise from ac,fan etc. The frequency spectrum of the noise and ...

3 years ago | 0 answers | 0

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Question

Finding a 2d block with highest average inside a 2d window
Consider a matrix A(52,34) How to find out which 2d block size(3,3) has the highest average in it

4 years ago | 1 answer | 0

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Question

Weird problem with MATLAB misbehaving..
This is the Linear regression function. My problem is when I am running one line using this function MATLAB2017a returns values ...

4 years ago | 1 answer | 0

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Question

How to use imagesc and videowriter
Consider that we have multiple images to be shown by imagesc in a loop,How to convert this to a mp4 sequence

4 years ago | 0 answers | 0

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Question

VIDEO WRITER and imagesc coding
hello guys I am running into problem to create this video sequence of the str images as mp4 file.L = 1×6 Image ar...

4 years ago | 0 answers | 0

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Question

Assignment has more non-singleton rhs dimensions than non-singleton subscripts
I am getting this error while I am running a function, I am aware that a few instances like this might happen in the function. I...

4 years ago | 1 answer | 0

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Question

Matrix manipulation and interpolation
<</matlabcentral/answers/uploaded_files/95304/matrix.PNG>> Hello here is my problem,Pls see the image for a simple understand...

4 years ago | 1 answer | 0

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Question

Making normxcorr2 function efficient
Hello the problem I'm facing is that for calculations with large matrix, the normxcorr2 takes much time.So is there be any way o...

4 years ago | 0 answers | 0

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Question

How to check whether a 2d matrix is gradually increasing in values in row direction.
Lets say u have a matrix A=[2 4 7;3 4 6;] So we can see the A(4)==3 in row 2 has increased from A(1)==2 progression, And ...

4 years ago | 4 answers | 1

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Question

Finding threshold of matrix
Suppose u have a matrix A with rand (i.e 0-1). Now a threshold(x) of A is to be determined so that 70% of values of the given ma...

4 years ago | 1 answer | 0

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Find X and Y using matlab
First you have to make a function like this in a certain directory function F=eqn(k) x=k(1); y=k(2); F...

4 years ago | 0

Problem by creating Sub Matrices
clear all a=magic(5) shiftr=2 shiftc=1 k=1 rowsize=3 colsize=3 for i=1:shiftr:size(a,1) if i+r...

4 years ago | 0

Question

C++ to 64-bit MEX
Any idea on converting C++ ie .cpp to mex64

4 years ago | 1 answer | 0

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Zero-crossing calculation
zeroindex=find(y==0) x(zeroindex)

4 years ago | 0

please how can I Draw the graph of y = 2ex, -5 <= x <= 5
x=linspace(-5,5) y=2.*exp(x) plot(y,x)

4 years ago | 0

Calculating the Greatest Common Divisor for two positive integers (simple)
This is how u call the function.Calling getData and printData is useless. A= input('Enter x') B= input ('Enter y') [M...

4 years ago | 0

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How to do cubic spline smoothing of two 2D matrixes of equal size
Suppose we have two 2D matrix of the same size.How to do the cubic spline based smoothing

4 years ago | 1 answer | 0

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I am very new to Matlab and was wondering how to graph the function y= (x-1)/(x+1)
Just include a . before division x= -5:5 y= (x - 1)./(x + 1) plot(x,y)

4 years ago | 0

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Extract rows according to the rows sum
clear all close all A = nchoosek(1:9,3) x=find(sum(A,2)==15) B=A(x,:)

4 years ago | 0

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Question

Indexing error.How out of bound elements in case of indexing error occurs can be replaced by zeros(or by interpolation)
Hey guys could u help me out to solve this indexing error.I want when indexing error occurs in this the out of bound elemnts sho...

4 years ago | 0 answers | 0

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Question

Weird problem with fix.
Guys do you know why fix on matlab 2017a is behaving weirdly. Pls have a look on the attached pic.This is not photoshopped. <...

4 years ago | 2 answers | 0

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Question

CAN ANYONE POST THE CODE OF fillmissing.m (matlab 2017 function).TIA
Hey guys I am on MATLAB 2016a and really need fillmissing.m to ease up things.Can anybody post it here.TIA

4 years ago | 1 answer | 0

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Question

Suppose you have a 2d matrix M. And you have certain indexes where the data is not good.SO you want to fill those indexes by the nearest existing value.Can regionfill be used for this
M=magic(10) index=[7,8,,5,9,45,43,23,34] M(index)=nan Now how to fill up those Nan values such that it contai...

4 years ago | 1 answer | 0

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Changing dimensions of matrix
Say that we have two matrices.One is a 32*15 matrix and the other is 66*31 matrix.It is required to determine where this(32,15) ...

4 years ago | 2 answers | 0

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Question

how to extract 2d window from a 2d matrix
consider you have a 9/9 matrix 2d.It is required to extract 9 matrixes like the attachment How to do it by using loops as it...

4 years ago | 1 answer | 0