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**Content Feed**

Fitting data with two peaks

You could get a close approximation of peak position with a cubic spline fit and local maxima. You could also try just smoothin...

8 years ago | 0

[DISCONTINUED] MATLAB Answers Wish-list #2 (and bug reports)

Perhaps there is a method of which I am not aware, but I would like to be able to track questions that I commented on and not ac...

11 years ago | 2

Finding pixels in connected component

It sounds like you are looking for a perimeter of a shape as the "bounding box." If so, use <http://www.mathworks.com/help/imag...

11 years ago | 0

array: concatenate two columns of integers to one colum

A = [1234, 567; 1, 234]; %Sample Data % Figure out how many spaces to shift the left column C = ceil(log10(A(:,2))); ...

11 years ago | 0

How can I fill the area between two curves other than facecolors

Check out the <http://www.mathworks.com/matlabcentral/fileexchange/1736-hatched-fill-patterns "Hatched Fill Patterns" FEX Submis...

11 years ago | 0

| accepted

Solved

Return the 3n+1 sequence for n

A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

11 years ago

combining number of images using matlab

See the <http://matlab.wikia.com/wiki/FAQ#How_can_I_process_a_sequence_of_files.3F Matlab FAQ>.

11 years ago | 0

how to determine the best tangential at every points from a freehand line?

I have been struggling with a related issue myself as of late. I settled for sampling the image with a small window and usi...

11 years ago | 0

Dividing the pixel into blocks

Do you have the image processing toolbox? This should get you started down the right path: * <http://www.mathworks.com/produ...

11 years ago | 0

Question

BWDIST label matrix not returning expected labels

I am trying to use the label matrix feature of |bwdist|, but am encountering a problem. *Instead of returning the linear index ...

11 years ago | 2 answers | 0

### 2

answersHow to store different # of values, obtained in iterations, in Matrix / array ?

<http://matlab.wikia.com/wiki/FAQ#How_can_I_create_variables_A1.2C_A2.2C....2CA10_in_a_loop.3F FAQ> I think I deciphered your...

11 years ago | 0

Cody: Problem 30 - function Sortrows

You were taking the complex conjugate of |z|. Be careful whenever you use |'| to transpose in Matlab! function z = complex...

11 years ago | 1

| accepted

Boundary of an image

Utilize the matlab function <http://www.mathworks.com/help/toolbox/images/ref/regionprops.html |regionprops(...,'MajorAxisLength...

11 years ago | 0

Mapping colored image on grayscale

I = imread('Brain.jpg'); Tumor = imread('Tumor.jpg'); ThresholdValue = 10; % You'll want to find the best value mas...

11 years ago | 1

rows which do not contain zero

row_numbers = find(sum(A,2) ~= 0); number_of_rows = numel(row_numbers);

11 years ago | 0

i can't uderstand the image blurring in following code....what does the following blurring filter do? how does it work?

I believe your unblurred is your expected blurred, and your blurred is actually the frequency domain for the blurred image. The ...

11 years ago | 0

How to create a loop calcualtion?

So you have a 1 x 20 vector you want to fill off of knowing just the first value and each previously value determines the next? ...

11 years ago | 1

find out the orientation, length and radius of curved rectangular object

Have you looked at MF <http://www.mathworks.com/help/toolbox/images/ref/regionprops.html regionprops()>?

11 years ago | 0

Code of plotting from SCOPE three axis to sublots

This is not writing all the code for you, but this should hopefully help. Your error seems to be in how to access the informati...

11 years ago | 0

Question

Indexing points along curve in matrix in order from one endpoint to the other

I have a logical image with many 1-px wavy curve segments and I am trying to fit a curve to these segments to find the orientati...

11 years ago | 2 answers | 0

### 2

answersHow can I sort a string both alphabetically and numerically?

<http://www.mathworks.com/matlabcentral/fileexchange/7212-asort-a-pedestrian-alphanumeric-string-sorter FEX Submission "ASORT: A...

11 years ago | 1

how do you make an array with letters

letters = 'A':'P'; % According to this nifty iPhone Matlab Mobile app

11 years ago | 0

Classification of Brain tumor

In addition to IA's answer, this seems to be a question requesting a novel idea of how to differentiate tumor types accurately u...

11 years ago | 1

How can i write the frequency vector for frequency range 5-400 hz using 50 frequncy points

|FrequencyVector = linspace(5,400,50); %linspace(min,max,# of points)|

11 years ago | 0

Help splitting blobs that contain overlap in an image

A sample image may result in better answers if you can provide one. It sounds like you'll need to use a watershed techniq...

11 years ago | 0

Is code formatting still too complicated

I would recommend implementing an "open code" and "close code" tag system similar to the other features in the comment section |...

11 years ago | 1

Get the index for the search of multiple strings within an array of strings

Is this what you were looking for? list = {'bad','worse','good','okay'}; badlist = {'bad','worse'}; idx = ismember...

11 years ago | 2

Add new column a vector.

x = [0;0;2;2;1;0;0;2;0]; y = [43;43;34;34;34]; Combined{1} = x; Combined{2} = y; You need to use cells |{}| in order...

11 years ago | 0

| accepted

How can I create a 16'' by 3.5'' rectangle centered on a 11'' by 17'' paper?

Use |<http://www.mathworks.com/help/techdoc/ref/rectangle.html rectangle('Position',[x,y,w,h])>|. I am assuming the reason ...

11 years ago | 0

how to generate function of an ellipse?

There is a function to draw such an ellipse in Matlab if you have the PDE toolbox, |<http://www.mathworks.com/help/toolbox/pde/u...

11 years ago | 1

| accepted