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elham sa


Active since 2015

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Question


What is the Fourier transform of an Airy Disc?
I know that an airy disc is: Jinc(r).^2 and Jinc is the Fourier transform of a Disc, am I right? If so, then Fourier ...

6 years ago | 2 answers | 0

2

answers

Answered
Is this how to calculate Mean Square Error for two images?
I tried out your code and it works fine. Are you sure that you are not using the *run* (F5) to test your function? Your co...

6 years ago | 0

| accepted

Question


How to get a dithered color image
I know that X = dither(RGB, map); returns an indexed image approximation to the given RGB image. I have two questions...

6 years ago | 1 answer | 0

1

answer

Answered
Abel transform and its inverse
You don't need Abel Transform here, if you have a circularly symmetric PSF. A slice of a full MTF is 1D Fourier transform of ...

6 years ago | 0

| accepted

Question


Abel transform and its inverse
I know that Line Spread Function (LSF) is the integral of the Point Spread Function (PSF). and I know that LSF is Abel transfor...

6 years ago | 1 answer | 0

1

answer

Question


What is the correct number of pixels for a Gaussian with a given standard deviation?
Assume, by some method, I have evaluated that my point spread function is a Gaussian with \sigma = 3 (standard deviation) How...

6 years ago | 1 answer | 1

1

answer

Question


How can I use Software Development Kit (SDK) in Matlab for image capture using USB camera?
I have a canon EOS T4i camera, I would like to capture an image without using Image Acquisition Toolbox. I have used "videoi...

6 years ago | 1 answer | 0

1

answer

Question


How to perform matrix calculations with operators?
I want to solve a least square problem, say with \ or lsqlin. My matrix C is huge, so I want to represent it with an operator. ...

6 years ago | 1 answer | 0

1

answer

Answered
Why MATLAB R2014a can not recognize my usb camera, while my camera works fine with amcap ?
I have a similar problem. I was able to connect my built-in webcam to Matlab by installing support packages for OS Generic Vi...

6 years ago | 0