# MSP

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**Feeds**

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...

ungefär 4 år ago | 0 answers | 0

### 0

answersQuestion

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 ...

ungefär 5 år ago | 1 answer | 0

### 1

answerQuestion

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 ...

ungefär 6 år ago | 0 answers | 0

### 0

answersQuestion

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

ungefär 6 år ago | 1 answer | 0

### 1

answerQuestion

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 ...

mer än 6 år ago | 1 answer | 0

### 1

answerQuestion

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

mer än 6 år ago | 0 answers | 0

### 0

answersQuestion

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...

mer än 6 år ago | 0 answers | 0

### 0

answersQuestion

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...

mer än 6 år ago | 1 answer | 0

### 1

answerQuestion

Matrix manipulation and interpolation

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

mer än 6 år ago | 1 answer | 0

### 1

answerQuestion

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...

mer än 6 år ago | 0 answers | 0

### 0

answersQuestion

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 ...

mer än 6 år ago | 4 answers | 1

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answersQuestion

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...

mer än 6 år ago | 1 answer | 0

### 1

answerFind 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...

mer än 6 år 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...

mer än 6 år ago | 0

Question

C++ to 64-bit MEX

Any idea on converting C++ ie .cpp to mex64

nästan 7 år ago | 1 answer | 0

### 1

answerplease how can I Draw the graph of y = 2ex, -5 <= x <= 5

x=linspace(-5,5) y=2.*exp(x) plot(y,x)

nästan 7 år 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...

nästan 7 år ago | 0

Question

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

nästan 7 år ago | 1 answer | 0

### 1

answerI 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)

nästan 7 år ago | 1

| accepted

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,:)

nästan 7 år ago | 0

| accepted

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...

nästan 7 år ago | 0 answers | 0

### 0

answersQuestion

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. <...

nästan 7 år ago | 2 answers | 0

### 2

answersQuestion

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

nästan 7 år ago | 1 answer | 0

### 1

answerQuestion

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...

nästan 7 år ago | 1 answer | 0

### 1

answerQuestion

Suppose I have a matrix of size(3,3).This is up-scaled by 2 making it (6,6).So there would be a number of vacant values between each element of the initial (3,3) matrix.Then how do you fill up the 0 values in addmatrixR by bicubic/liner interpolation

prevR=magic(3) m=1; k1=1 addRmatrix= zeros(2*size(prevR,1),2*size(prevR,2)) for i=1:size(prevR...

nästan 7 år ago | 2 answers | 0

### 2

answersQuestion

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) ...

nästan 7 år ago | 2 answers | 0

### 2

answersQuestion

How can I find all zeros in a 2d matrix and change those values by interpolating with the closest available values ?

For example, A=

nästan 7 år ago | 2 answers | 0

### 2

answersQuestion

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...

ungefär 7 år ago | 1 answer | 0

### 1

answerQuestion

how to integrate a graph

A function is given for a definite interval. Infact exact problem coding is not required.The solution must be general. # f(x)...

ungefär 7 år ago | 1 answer | 0