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# Amith Kamath

### U Minnesota

2011년부터 활동

Professional Interests: Image Processing, Computational complexity and algorithms

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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...

10년 초과 전 | 1

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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...

거의 11년 전 | 0

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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> ...

거의 11년 전 | 0

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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...

거의 11년 전 | 0

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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...

거의 11년 전 | 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>

거의 11년 전 | 0

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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...

거의 11년 전 | 0

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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...

거의 11년 전 | 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...

대략 11년 전 | 0

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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>...

대략 11년 전 | 0

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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(...

대략 11년 전 | 0

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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...

대략 11년 전 | 0

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Using Matlab for Iphone or Ipad

대략 11년 전 | 1

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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 ...

대략 11년 전 | 1

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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...

대략 11년 전 | 0

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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...

대략 11년 전 | 0

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<http://www.mathworks.com/matlabcentral/newsreader/view_thread/297814> may be of some help. Unless you are constrained to using ...

11년 초과 전 | 0

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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);

11년 초과 전 | 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...

11년 초과 전 | 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. ...

11년 초과 전 | 0

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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...

11년 초과 전 | 0

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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 ...

11년 초과 전 | 0

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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....

11년 초과 전 | 0

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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...

11년 초과 전 | 0

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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....

11년 초과 전 | 0

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

12년 초과 전 | 0

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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 ...

12년 초과 전 | 1

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

12년 초과 전 | 0

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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...

12년 초과 전 | 0

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