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Amith Kamath


U Minnesota

Actif depuis 2011

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Professional Interests: Image Processing, Computational complexity and algorithms

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Réponse apportée
What is the function to plot a rotating 3-D ellipsoid
function [] = visualizeDTrot(C,M,speed,Dir,time) %% C: the covariance matrix. %% Dir: direction of the estimate, to be p...

plus de 12 ans il y a | 1

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Réponse apportée
Hi i need help in file conversion .txt to mat file
Although this may not be the best way to do this, but you can use IMPORTDATA to import all the data from the '.txt' file as a st...

plus de 12 ans il y a | 0

Réponse apportée
How to change colorbar's color (in some particular value interval)?
You can manually change the colormap, using COLORMAPEDITOR: <http://www.mathworks.com/help/matlab/ref/colormapeditor.html> ...

plus de 12 ans il y a | 0

Réponse apportée
how to draw a temperature distribution on (x,y,z)?
<http://www.mathworks.com/help/matlab/visualize/representing-a-matrix-as-a-surface.html> should help. The image you have att...

plus de 12 ans il y a | 0

Réponse apportée
how i can implement lowpass filter on image using matlab
I am assuming you need to smooth (low pass) an image. These two functions are what you need to use: <http://www.mathworks.com...

plus de 12 ans il y a | 0

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How do I obtain video (.avi) from a webcam (in real time) and store the video frames somewhere for further processing?
This will be instructive: <http://www.mathworks.com/help/imaq/examples/logging-data-to-disk.html?prodcode=IA&language=en>

plus de 12 ans il y a | 0

| A accepté

Réponse apportée
Confusion with adding to cell array
This should work: a = {[0 0], [0 0]} b = [1 2 3 4] a{1} = b(1:2) %choose the first two elements from b and assign to fir...

plus de 12 ans il y a | 0

Réponse apportée
how to plot scattered points on 2D graph
Does <http://www.mathworks.com/help/matlab/ref/scatter.html> work? I am assuming your data is a collection of (x,y) pairs, and y...

plus de 12 ans il y a | 0

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how to find area,eccentricity,mean median ,mode ,variance of a white blood cell
<http://www.mathworks.com/matlabcentral/fileexchange/25157-image-segmentation-tutorial-blobsdemo> would be a good place to start...

presque 13 ans il y a | 0

Réponse apportée
Display gray color only from grayscale image
For most tasks of analysing pixel values and thresholding, I've found <http://www.mathworks.com/matlabcentral/fileexchange/6770>...

presque 13 ans il y a | 0

Réponse apportée
Displaying Images after feature extraction
If you have four images in I, J, K and L, you could do this, figure subplot(2,2,1); imshow(I) subplot(2,2,2); imshow(...

presque 13 ans il y a | 0

Réponse apportée
What are the advantages/disadvantages to using the ball compared to the disk structuring element?
<http://blogs.mathworks.com/steve/2006/10/23/nonflat-grayscale-dilation-and-erosion/> has some details about the non-flat struct...

presque 13 ans il y a | 0

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Réponse apportée
Using Matlab for Iphone or Ipad
<http://www.mathworks.com/matlabcentral/answers/12036#comment_26682> at <http://www.mathworks.com/matlabcentral/answers/12036-ho...

presque 13 ans il y a | 1

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Réponse apportée
Delete rows in a matrix that contain ONLY a negative number
I'm quite positive that this does the trick. There would probably be more optimal ways to do it! X = 100.*rand(12,5); %for ...

presque 13 ans il y a | 1

Réponse apportée
histograms of crossing count
Thanks for the interesting question! I'm guessing you're trying something like this. The I = (rand(500,500) >= 0.5); %i...

presque 13 ans il y a | 0

Réponse apportée
how to load a picture in Matlab? can a video is uploaded in Matlab ?
<http://www.mathworks.com/products/imaq/examples.html> and <http://www.mathworks.com/help/imaq/examples/acquiring-a-single-image...

environ 13 ans il y a | 0

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Réponse apportée
Using fgetl() to read lines
<http://www.mathworks.com/matlabcentral/newsreader/view_thread/297814> may be of some help. Unless you are constrained to using ...

environ 13 ans il y a | 0

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Réponse apportée
I have a matrix, there are zeros values in that and i just want to remove the zero values from the array
if A is the array in question, you could do: A = A(A ~= 0);

environ 13 ans il y a | 1

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Which toolboxes are needed for object detection from video over MATLAB 2009 platform?
You may want to look at: <http://www.mathworks.com/products/computer-vision/index.html> (this is not available for 2009 thoug...

environ 13 ans il y a | 0

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Measuring indentation in an object
<http://blogs.mathworks.com/steve/2011/10/04/binary-image-convex-hull-algorithm-notes/> and the convex hull concept would help. ...

environ 13 ans il y a | 0

Réponse apportée
I wanna replacing 2nd and 3rd column to each other. How can I write a command?
Assuming I understand the question right, here is an example of how it could be done: x = magic(5); % a random matrix fo...

environ 13 ans il y a | 0

Réponse apportée
Mesh for 3D plot
Going from the error, it seems that you are trying to use mesh for a 1D array (Z in your case). Mesh expects the 'Z' to be a 2D ...

environ 13 ans il y a | 0

Réponse apportée
background noise and nearst point
For either case, I would imagine you will need a mask for the brain regions. This can be done either manually using <http://www....

environ 13 ans il y a | 0

Réponse apportée
convert 3d matrix to dicom image
I suppose for the time being, this happens to be the best available solution: <http://www.mathworks.com/matlabcentral/fileexch...

environ 13 ans il y a | 0

Réponse apportée
what is the code to apply filters (lowpass and highpass) for signals read?
Assuming you have the Signal Processing Toolbox installed, you could use the FDA Tool to specify the parameters for your filter....

environ 13 ans il y a | 0

Réponse apportée
Printing GUI figures
<http://www.mathworks.com/help/techdoc/ref/print.html> may help, although I've not tried it myself yet!

environ 14 ans il y a | 0

Réponse apportée
NaN in deconvolution
Since your data has zeros in them, deconvolution may return NaNs because you are dividing by zeros. What you could do is either ...

environ 14 ans il y a | 1

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Réponse apportée
showing the error out of memory
How to avoid out-of-memory cases: <http://www.mathworks.com/support/tech-notes/1100/1107.html>

environ 14 ans il y a | 0

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Réponse apportée
clarification of the use 'switch case'
from <http://www.mathworks.com/help/techdoc/ref/switch.html>, In MATLAB switch blocks, only the first matching case executes...

environ 14 ans il y a | 0

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Convolution in MATLAB Simulink
<http://www.mathworks.com/support/solutions/attachment.html?resid=1-13ZSQN&solution=1-13ZSPM> may be of help, assuming you have ...

environ 14 ans il y a | 0

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