Answered
How to fill empty parts of a projected image?
<http://www.mathworks.com/matlabcentral/newsreader/view_thread/256591#785780 CSSM:StevenLord_on_the_concave_hull> First, read t...

15 years ago | 0

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Image registration
<http://www.mathworks.com/matlabcentral/fileexchange/18401-efficient-subpixel-image-registration-by-cross-correlation FEX:dftreg...

15 years ago | 0

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Loop to spit out consecutive values into excel
The easiest way would just to keep a counter count = 1; for ii = 1:10; %generate stuff xlswrite(stuff,sprintf('A...

15 years ago | 0

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What does Matlab do with blank values?
[] is the empty set. 3*[] []*[] []+[2] etc. to see how it behaves. doc isempty will be your friend.

15 years ago | 0

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ind2gray
It really helps if you give us the FULL error message. what happens if you type: isempty(map) ?

15 years ago | 0

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question on int and constant of integration
*EDIT* Read Roger's reply here: <http://www.mathworks.com/matlabcentral/newsreader/view_thread/297561#800045 CSSM>

15 years ago | 0

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Answered
combining two images together
Side by side or superimposed? I = double(imread('cameraman.tif')); figure; imshow(I+I.',[]) %superimposed figure; imshow(...

15 years ago | 1

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Grouping the data based on distance values
|histc|? doc histc doc accumarray maybe? We'll need more details if you want a more precise answer.

15 years ago | 0

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How do I superimpose a pdf over a histogram?
It's plotting both of them; it's just the pdf is on the range of 0-1 (y values) and the histogram is on the range of 0-7000. No...

15 years ago | 0

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how to delete a digit from an array ???
B = A(~A & F(i,j)~=255)

15 years ago | 2

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faster way to generate submatrices?
doc convn 3-dimensional convolution specifically: m = neighborhood_window_size; B = convn(A,ones(m,m,m),'valid...

15 years ago | 0

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Warning singular matrix.
You could check if any of the result |isinf| if any(isinf(result(:))) %is it singular? x = this_instead; %yeah, doh! ...

15 years ago | 0

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Importing Data From Excel
Is the data a char in the excel file? You could always brute force it: is_str_a_num = str2double(char_num); %is it a num...

15 years ago | 0

15 years ago | 0

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How to normalise Image intensity?
Inormalized = double(I)./double(max(I(:))); Doing this to both will give them both the same maximum intensity (1).

15 years ago | 1

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Inserting a cell into a matrix
This kind of cell? imtool(padarray(imread('cell.tif'),[20 20])) %view cell embedded with 20 rows and columns on each sid...

15 years ago | 0

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Restrict access to Matlab code
Convert it to pcode (protected code) doc pcode

15 years ago | 0

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Images when publish
PDF the HTML. Else you have to send the WHOLE HTML folder which contains the images. This isn't really related to MATLAB as ...

15 years ago | 0

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Funny situations while helping others on MATLAB Answers
This hasn't happened in a while; but I like when someone doesn't catch onto a strung out variable name: X = your_matrix; %...

15 years ago | 4

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Funny situations while helping others on MATLAB Answers
Paulo, I liked one of your answers to a question; something along the lines of: "How do I write 34.999 to a string?" You repl...

15 years ago | 1

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create an array
szs = [20 20 30]; %sizes vals = [1 0 2]; %values C = cellfun(@(c,v)ones(c)*v,num2cell(szs),num2cell(vals),'uni',false); M =...

15 years ago | 0

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Combining images that have a reference on them
* Find the point of intersection * Rotate if necessary |imrotate| * Put them together. This thread might be good for that: <...

15 years ago | 1

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matching digits
A=1234; B=1248; C =1238; Astr = num2str(A); %you'll need this one 3x so convert it once. idxstop = find(any(bsxfun(@ne,...

15 years ago | 0

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Step by step getting BSD license
You just fill out the name and date and check off that you want. Later this afternoon when the admin accepts your file the BSD ...

15 years ago | 1

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Biuld Min Index Array from Two dimensional Array
[junk, index] = min(your_matrix); %will get you the first index To get all minimum indices: A = magic(4); %sample A(7) = ...

15 years ago | 0

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How can I access a submatrix as an array inline?
The problem is that B(:) is not the same shape as B which is equal to A(..). To fix: A = imread('peppers.png'); B=A(50:...

15 years ago | 0

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Answered
Display real time clock in Gui
<http://www.mathworks.com/matlabcentral/fileexchange/24861-41-complete-gui-examples GUI 17>

15 years ago | 0

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how to find argument or angle of a complex number in matlab?
That error you're seeing has to do with the syntax or variable you're referencing when you call |angle|. Did you overwrite angl...

15 years ago | 2

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MATLAB Central Answers website problem?
Arghh. < rant> Why do we have to click though our answers in groups of 50. It was excellent before, you could see all o...

15 years ago | 1

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Best way to filter a Matrix
Do you have the curve fitting toolbox? If so, look at: doc smooth specifically the 'rlowess' option. Are all three s...

15 years ago | 0