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waqas

14 total contributions since 2018

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Question

Plotting pcolor plot on an image at a particular area.
Hi, I have done some analysis on a particular region of an image which I now want to plot on the over the image. Following ima...

11 days ago | 2 answers | 0

2

Question

How to set lower and upper bound for only one of the output variable in lsqnonlin?
Hi, In the documentation of lsqnonlin, following statement is written: x = lsqnonlin(fun,x0,lb,ub) defines a set of lower an...

15 days ago | 1 answer | 0

1

Question

Masking an array back to a selected region in a Matrix
Hi, I have a column vector which I need to insert back to the a matrix(Attached in .mat file). The variable region has logical...

26 days ago | 1 answer | 0

1

Question

Fitting the data so that one a single continuous line is achived
Hi, I have following line that I want to smooth out so that only one point will be there in one column: mat file for the d...

2 months ago | 1 answer | 0

1

Question

Extracting coordinates values for the line.
Hi, I want to extract the coordinates for the white points along the main line where I am getting bit of noise around with ad...

2 months ago | 1 answer | 0

1

Question

Optimizing coefficients of an asymptotic series using lsqnonlin.
Hi, I am trying to find the coefficients of an asymtotic series using experimental and simulation data with lsqnonlin but the ...

2 months ago | 1 answer | 0

1

How to apply the same function on different rows of a vector?
If I got the question right, this is how it should work: andr = randn(521,1) andrn = 1/100*andr(521:-20:1) % you can use 1/10...

2 months ago | 1

| accepted

Question

Selecting data within a particular shape from a matrix.
Hi, I want to select data around point [169,547] in the attached v variable. Attached is the figure of the shape in which I w...

2 months ago | 1 answer | 0

1

You can use following rectangularMesh function to generate the same parameters. I hope this works for your code. function [node...

2 months ago | 0

Question

How to find the values of jump in an array?
I am trying to find the displacement jump from an array where I want to get the values at the locations highlighted in the attac...

4 months ago | 2 answers | 0

2

Question

Plotting intensities, gradients and variance of images (varying with time) on particular grid points.
Hi, I am working on a digital images series where the pixel intensity values are changing with time which I want to analyse in...

5 months ago | 1 answer | 0

1

Question

Finding unique values from arrays of different sizes
I am trying to find the unique values from 4 different arrays but the sizes are different i.e., for 2 arrays size is c1=c2= [42,...

7 months ago | 1 answer | 0

1

Question

How to use masking filter to remove particular frequency from an image?
I have modified the code of ImageAnalyst for one the tasks that I am currently working on. Goal is to extract the QR code from t...

12 months ago | 0 answers | 0