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**Content Feed**

Why intensity of the image has changed, after masking out image area (using binary mask)?

Actually it is just about displaying the image, if you check the values of im(60,65) and new_im(60,65) for im and new_im matr...

7 years ago | 1

| accepted

K-means clustering - results and plotting a continuous curve

1. K-means is a clustering method, it's NOT a classification algorithm, but the way you can then use its output for association....

7 years ago | 0

how to fill the black regions inside the white region? imfill() is not working.

imfill does not work because it thinks that your image is like this: <</matlabcentral/answers/uploaded_files/37222/Capture1....

7 years ago | 1

Export Fourier series coefficient into workspace variables

a0 = fitobject.a0; a1 = fitobject.a1; b1 = fitobject.b1; w = fitobject.w;

7 years ago | 0

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Computing Dice Similarity Coefficient for a Volume?

If your segmented output image and your reference image are 3 dimensional logical matrices do this: common = (refSegment & o...

7 years ago | 3

plot summation of shifted discrete signals

n=-4:2; y=[1,-2,4,6,-5,8,10]; maxShift = 10; % maximum shift that you may want, ...

7 years ago | 0

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3D volume to 2D matrix conversion

another possibility: A = rand(20,22,815); % your matrix B = reshape(A,440,815)'; The output of this code is equal to Ma...

7 years ago | 0

¿How can I change letter colour?

Check this out Mira esto (google traduce esto) <http://www.mathworks.com/matlabcentral/fileexchange/24093-cprintf-display...

7 years ago | 0

How to plot signal with unit step?

You can use heaviside function: n = -5:1:20; x = ((4/5).^n).*heaviside(n); stem(n,x) Bet be aware heaviside(0)=0.5

7 years ago | 2

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Why do I get the error message "error using open. Too many input arguments"?

What's the name of your mfile? change its name to for example test1.m , do you get the same error?

7 years ago | 0

Linkages other than Ward in evalcluster

Why don't you use <http://www.mathworks.com/help/stats/linkage.html linkage> or <http://www.mathworks.com/help/stats/cluste...

7 years ago | 1

I can not solve non-linear equation using m.file only

Cut this part of the code from the mfile you atteched: x0=[0 0]; options = optimoptions('fsolve','Display','iter'); % Opti...

7 years ago | 1

| accepted

Find the max/min values within determined segments of a matrix

Actually you were right, MATLAB answers is directed to the programming side of the issue, I just wanted to know what you exactly...

7 years ago | 2

| accepted

what is 'radii' in the 'genfis2' function?

To make it simpler, just focus on the effects that different amounts of randii have on your Fuzzy system. If you set radii as 1 ...

7 years ago | 0

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Problems in plotting a Sinc signal, applying a FFT with noise and then the IFFT.

You've got some errors in your code, for example, you defined x=fftshift(s) which is wrong. You also add a normally distributed ...

7 years ago | 0

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Image axis on four sides

You can use this: Im = imread('cameraman.tif'); imshow(Im); image(Im);

7 years ago | 0

Is it possible to call a pre-trained neural network as a function in another script?

Yes you can save your trained network as for example "net.mat" and later import that network and use "sim" function to get the r...

7 years ago | 0

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how to create an random points in desired circle using rand function??

You need to generate points which have random angles smaller or equal to 2*pi and random radius smaller or equal to the circle r...

7 years ago | 0

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Is there a way to browse parent folders of the current working folder?

I'm not sure if I got your question correctly, but have you tried cd? doc cd you can change your current folder whenever ...

7 years ago | 0

Saving pdf (png) with user adding the name

You can use this code inside the Callback function of your save button: [filename, pathname] = uiputfile({'*.pdf';'*.png';'*...

7 years ago | 0

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fixing the values in matrix when it come between 0 and 1

Thank you image Analyst, I just changed the code a little bit, I think this is what 4*4 wants: a = randi(5,5); while tru...

7 years ago | 0

Reading variables from workspace

If you want to save all the variables from workspace to a file named data.mat you just need this: save('data')

7 years ago | 0

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How do I publish results with an input command?

publish(file,'evalCode',false)

7 years ago | 0

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restricting the number between limits

insert this into for loop: if (value > 0) && (value < 1) break; end

7 years ago | 0

saving files in a loop with different names

you should pass the string of the name of your variable, use this: save(filename,'grouped');

7 years ago | 0

How I can view the misclassified records and correct classified records in classification learner

Considering the very nature of knn classifier, your question is logically wrong. It has nothing to do with Matlab actually. If y...

7 years ago | 0

Find the center of specific picture area

That's because x1 refers to columns of the image and y1 refers to the rows of the image, so for plot you should write: plot(...

7 years ago | 0

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How do I make a code that will count the number of times the sign changes succesively through an array?

pos = DAX>0; changes = xor(pos(1:end-1),pos(2:end)); num = sum(changes)

7 years ago | 1

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Is there a way to make matlab create variables of any number on its own?

you don't need to define 10 variables, just define one and use its dimensions as different variables. If new variables are in th...

7 years ago | 1

K means clustering in DICOM files

It'll be better idea if you do feature extraction on your image before using kmeans, but If you simply want to perform kmeans on...

7 years ago | 0