Simulating human vision system.
I have to say that if you have no experience of MATLAB this is quite a tough project to start with. It's easier to learn a new l...
plus de 15 ans il y a | 0
| A accepté
Problem with phase in FFT analysis
The problem is that there is not an exact whole number of cycles of the sine wave in the original time series. If you look at th...
plus de 15 ans il y a | 5
| A accepté
How to remove single quotes using regexprep
The solution using regexprep is just D = regexprep(C, '''', '');
plus de 15 ans il y a | 1
Locating Peaks Naively
In case you don't have the Signal Processing Toolbox, or its findpeaks function is not general enough, you could try the followi...
plus de 15 ans il y a | 2
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Is there a method to sort a list an array of words alphabetically (natural order sorting)
>> sort({'gamma', 'delta', 'alpha', 'beta'}) ans = 'alpha' 'beta' 'delta' 'gamma'
plus de 15 ans il y a | 5
| A accepté
Pattern Extraction from an image?
You can pull out the part of the image round location (x,y) like this: pattern = image(y-h:y+h, x-h:x+h); This assumes ...
plus de 15 ans il y a | 0
| A accepté
How do you create a loop to find a coefficient value to which one of the variables in the function changes with every cycle
The first thing to be clear about is the distinction between the time step, dt, and the time itself, which might be called t. dt...
plus de 15 ans il y a | 0
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2D FFT: problems with fftshift + setting up wavenumbers
You've used fftshift to put the zero-frequency component at the centre of the array F3. However, your wavevector matrices kx and...
plus de 15 ans il y a | 0
| A accepté
Iteration of changing discrete variables
It depends on how the data for the four variables are stored. I'll assume you can read the data into four arrays, each of which ...
plus de 15 ans il y a | 0
how to get low pass filter from image
It looks as if you didn't assign a value to the second input argument when you called the function. I also see that the first ar...
plus de 15 ans il y a | 0
Image retrieving
The fft can be reversed almost exactly (using ifft in Matlab). Any numerical errors will be tiny. The log-polar transformation ...
plus de 15 ans il y a | 0
log-polar mapping conversion
The poster is using ImToPolar from the file exchange, which does a polar transform. However, the text says that a log-polar tran...
plus de 15 ans il y a | 2
A soumis
Fourier transform demonstration
An introductory demonstration of the discrete Fourier transform, making use of the fft function.
plus de 15 ans il y a | 8 téléchargements |
A soumis
Extended array indexing
Indexes a virtual array formed by extending an array indefinitely on each dimension.
environ 16 ans il y a | 1 téléchargement |
A soumis
Log-polar image sampling
Resamples an image from a conventional grid to a log-polar grid, and back.
environ 16 ans il y a | 3 téléchargements |
A soumis
Elementary Cellular Automata
Simulates any 1D nearest-neighbour binary cellular automaton.
environ 16 ans il y a | 2 téléchargements |
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Gabor function masks
Create Gabor-function convolution masks
plus de 17 ans il y a | 1 téléchargement |