Roipoly for 3D images
This is interesting too. I had to work on a similar problem of 3D segmentation, where the correlation between slices was signifi...

ungefär 11 år ago | 3

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Insert a mathematical function in a GUI from a txt file
This is quite interesting! I could do it this way: Suppose a file called data has the lines: x = 5; y = (x^2+x)*cos(x);...

ungefär 11 år ago | 0

a quickfix but dirty solution is to read everything as a string, as [id,h,w,s]=textread('data','%s %s %s %s') From the t...

ungefär 11 år ago | 0

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Signal Segmentation ( All the max values)
you could use the function findpeaks, and a tutorial is here: <http://blogs.mathworks.com/pick/2008/05/09/finding-local-extrema/...

ungefär 11 år ago | 1

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Characteristics of image file formats
short answer: from MATLAB's perspective, nothing much really. You could work with any of these image formats using imread and so...

ungefär 11 år ago | 0

brain tumor detecting

ungefär 11 år ago | 0

FFT of 100 data points
if x is your data, L=length(x); dt=3.5*10^(-6); %time. fs=1/dt; t=(0:1:L-1)*dt; %If you'd like to plot the time signal: ...

ungefär 11 år ago | 4

segmentation for touching handwritten numeral string

ungefär 11 år ago | 0

HSV colormap
When you convert a RGB image to HSV, in the 3rd dimension, the 'layers' in the image are hue, saturation and value in that order...

ungefär 11 år ago | 0

Matrix Solution
for i = 1:7 for j = 1:7 P(i,j) = factorial(i + j - 2)./(2*factorial(j - 1)); end end for a 4x4 matrix, change the 7 in lines ...

ungefär 11 år ago | 0

how to repalce a matrix
I wonder what the purpose of this is, but here goes: Image1 = imread('rice.png'); % conveniently is 256x256. Image2 = ui...

ungefär 11 år ago | 0

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clustering the data
OK, so from what I understand, you are clustering the genes, and not the samples, which means that you need to transpose your sa...

ungefär 11 år ago | 0

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sqrt in figure label
you would have to change the interpreter to latex, and then type in {\surd} in the xlabel (or any text) box. All the symbols are...

ungefär 11 år ago | 4

Need a equivalent function of imshow.
you could use the function image % <http://www.mathworks.com/help/techdoc/ref/image.html> or imagesc % <h...

ungefär 11 år ago | 0

supervised training of SOM in MATLAB
I don't know if matlab natively includes SOM functions, but you should definitely find it here: <http://www.cis.hut.fi/somtoolbo...

ungefär 11 år ago | 0

Matrix values of an Image
I = imread('rice.png'); Now I includes the pixel values from the image 'rice.png' as a matrix, of size equal to the resolutio...

ungefär 11 år ago | 1

Down sampling
I would assume that in this case, a more apt term is dimensionality reduction, which has to be done based on what features have ...

ungefär 11 år ago | 0

mp3 encoder code in matlab, can i able to get it? ... actually i have problem implimenting pscychoacoustic model...so if possible can you give code for it?
You may want to swap the *heading* and 'description' parts of your questions hereon, :) but here's the only implementation I kno...

ungefär 11 år ago | 0

SVM Regression
I don't really know why MATLAB has not included it by default, and as far as I know, there is no disadvantage as such of using S...

ungefär 11 år ago | 0

Drawing the x-axis at y=0
You may want to look at this example: http://www.mathworks.com/support/solutions/en/data/1-216M68/index.html?product=ML&solut...

ungefär 11 år ago | 0

Uniform Distribution (Continuous) fit on data
from: http://www.mathworks.com/help/techdoc/ref/rand.html Generate values from the uniform distribution on the interval [a, b...

ungefär 11 år ago | 0

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Weibull distribution
AFAIK, there is no particular relation between error calculation and the model you use to fit the data. They are independently c...

ungefär 11 år ago | 0

NN algorithm
http://www.mathworks.com/products/neural-network/demos.html There are *many* algorithms implemented in the Neural Network Too...

ungefär 11 år ago | 1

Linear Program set up for this Optimization (linprog)
From whatever optimization problems I've solved in MATLAB, the easiest way to do it has always been using the package called cvx...

ungefär 11 år ago | 0

How to reshape a matrix
if A is the first matrix that you defined, do: B = [A(1:2,1:3);A(1:2,4:6)] to choose the required rows and columns from A to ...

ungefär 11 år ago | 0

Using indexing to superimpose images:
From the description on the link you posted: Use this method if you have an image that you want to place in a scene, but pref...

ungefär 11 år ago | 0

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how to shrink a image to fit in a screen for further image processing?
If you intend to resize the image at the cost of resolution, you need to use imresize, but if you want to keep the resolution, b...

ungefär 11 år ago | 0

hiding folder using command
So if you are running windows, I assume system('attrib +s +h +r foldername') when you are in the directory containing the folder...

ungefär 11 år ago | 0

Split String into Alphabets
you could access each element of the string by looking at input_text(i) where i varies from 1 to size(input_text,2). for exa...

ungefär 11 år ago | 0

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