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Asser Abdelgawad


Last seen: 8 months ago |  Active since 2022

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How can I use fminsearch() to apply a sinc function (sin(x)/x) fit on my data?
I am aware that fminsearch can be used to achieve this, but it is not intuitive to me how it can be done. Can someone provide an...

2 years ago | 1 answer | 0

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answer

Question


Why is saveas() changing my image aspect ratio?
I'm trying to save a figure as a PNG but the aspect ratio changes for some reason. This is how it looks in MATLAB: This is...

2 years ago | 2 answers | 0

2

answers

Question


Revolving a 2D plot around its vertical axis to generate 3D surface
While this solution is helpful, the usage of repmat makes it so that the values are repeated and not unique. What I would like t...

2 years ago | 1 answer | 0

1

answer

Question


How to name my files differently in a loop
I want each "pic" to have a differnet name corresponding to n. i.e: 1.jpg, 2.jpg, etc. This gives me an error because the n is ...

2 years ago | 1 answer | 0

1

answer

Question


Error in Generating Point Spread Function
After finding the Modulation Transfer Function, I used this method to rotate it about its vertical axis to obtain the 2D MTF. I ...

2 years ago | 1 answer | 0

1

answer

Answered
Which Gaussian fitting tool should I use?
Use the fit() function from the curve fitting toolbox: f = fit(x,y,'gauss2') y = f(x)

2 years ago | 0

| accepted

Question


Which Gaussian fitting tool should I use?
I used a gaussian fitting function that generated this result. Surely this graph can look more gaussian rather than parabolic? ...

2 years ago | 3 answers | 0

3

answers

Question


Is there something wrong with my MATLAB code for calculating the point spread function?
I have the two following PSFs for the same image; the first has a detector pitch of 0.2mm and the other of 0.015mm. I'm curio...

2 years ago | 0 answers | 0

0

answers

Question


Revolving a curve about the y-axis to generate a 3D surface
I'm aware that the cylinder() functiond does this for revolutions about the x-axis. But is there a way to do this about the y-ax...

2 years ago | 2 answers | 0

2

answers