Amith Kamath
U Minnesota
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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...
ongeveer 12 jaar ago | 1
| accepted
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...
meer dan 12 jaar ago | 0
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> ...
meer dan 12 jaar ago | 0
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...
meer dan 12 jaar ago | 0
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...
meer dan 12 jaar ago | 0
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>
meer dan 12 jaar ago | 0
| accepted
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...
meer dan 12 jaar ago | 0
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...
meer dan 12 jaar ago | 0
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
meer dan 12 jaar ago
Solved
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
meer dan 12 jaar ago
Solved
Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...
meer dan 12 jaar ago
Solved
Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...
meer dan 12 jaar ago
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...
bijna 13 jaar ago | 0
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>...
bijna 13 jaar ago | 0
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(...
bijna 13 jaar ago | 0
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...
bijna 13 jaar ago | 0
| accepted
Using Matlab for Iphone or Ipad
<http://www.mathworks.com/matlabcentral/answers/12036#comment_26682> at <http://www.mathworks.com/matlabcentral/answers/12036-ho...
bijna 13 jaar ago | 1
| accepted
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 ...
bijna 13 jaar ago | 1
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...
bijna 13 jaar ago | 0
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...
bijna 13 jaar ago | 0
| accepted
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 ...
bijna 13 jaar ago | 0
| accepted
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);
bijna 13 jaar ago | 1
| accepted
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...
bijna 13 jaar ago | 0
| accepted
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. ...
bijna 13 jaar ago | 0
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...
bijna 13 jaar ago | 0
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 ...
bijna 13 jaar ago | 0
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....
bijna 13 jaar ago | 0
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...
bijna 13 jaar ago | 0
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....
bijna 13 jaar ago | 0
