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...
ungefär 12 år 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...
mer än 12 år 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> ...
mer än 12 år 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...
mer än 12 år 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...
mer än 12 år 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>
mer än 12 år 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...
mer än 12 år 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...
mer än 12 år ago | 0
Solved
Determine if input is odd
Given the input n, return true if n is odd or false if n is even.
mer än 12 år 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 ...
mer än 12 år 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...
mer än 12 år 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:...
mer än 12 år 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...
nästan 13 år 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>...
nästan 13 år 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(...
nästan 13 år 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...
nästan 13 år 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...
nästan 13 år 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 ...
nästan 13 år 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...
nästan 13 år 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...
nästan 13 år 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 ...
nästan 13 år 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);
nästan 13 år 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...
nästan 13 år 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. ...
nästan 13 år 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...
nästan 13 år 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 ...
nästan 13 år 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....
nästan 13 år 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...
nästan 13 år 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....
nästan 13 år ago | 0
