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Azza Ahmed


Actif depuis 2012

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constructing a 1D using ifft
Hi there, I get confused with all the website explaining how to construct an image from k-space using inverse fourier transfo...

environ 12 ans il y a | 2 réponses | 0

2

réponses

Question


Addition of 3D matrices
Hi, I have a matrix that looks like this: M(:,i,X,Y) that gives an answer of another matrix with dimension of 3*1 when mul...

environ 12 ans il y a | 2 réponses | 0

2

réponses

Question


sum of values in column wise
Hi, I am trying to add values in a matrix that each is identified as I(x,y) where each of x and y is 3*3 matrix. Now, what I ...

plus de 12 ans il y a | 1 réponse | 0

1

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Réponse apportée
A faster way to read a large text file
Hi Jonathan, Many thanks for getting back to me. I have tried to do something similar earlier by I had difficulties on where ...

plus de 12 ans il y a | 0

Question


A faster way to read a large text file
Hi, I am reading a large text file ~3GB in chunks. Each time I open the file,I read the header lines, then read a chunk "of l...

plus de 12 ans il y a | 2 réponses | 0

2

réponses

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indices of all non zeros rows
Hi, I have a large text file and I am trying to find the indices of the rows that do not have all zeros. For example is I ha...

plus de 12 ans il y a | 1 réponse | 1

1

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Question


reading a text file
Hi, I am trying to read a text file having 11 headerlines at the beginning and 30 rows of numberical data (in 4 different col...

presque 13 ans il y a | 1 réponse | 0

1

réponse

Question


Reading a textfile with increment-RLE
I have a large file that shows 5 different tasks that run every 1 microsecond. The text file consist of 5 different columns ...

presque 13 ans il y a | 1 réponse | 0

0

réponse

Question


reading a dicom file
Dear Matlab communite I am trying to read a dicom file (an MRI image) using matlab and then perform a Fourier transform of th...

presque 13 ans il y a | 1 réponse | 0

1

réponse

Question


An empty figure
Many thanks for getting back to me. I did the necessary changing by having another variable F with the same dimension of the one...

environ 13 ans il y a | 1 réponse | 0

0

réponse

Question


Index exceeds matrix dimensions
Hello, I think I have a problem with my matrices but I can't figure out where to fix it. I am trying to read a text file of siz...

environ 13 ans il y a | 1 réponse | 0

1

réponse