MATLAB: How to make array in matlab ( how to inisialisasi array )

getting startedimage processingImage Processing ToolboxMATLABpreallocation

how to use array in matlab

Best Answer

Preallocation of an array is usually done with the zeros function:
B = zeros(n)
B = zeros(m,n)
B = zeros([m n])
B = zeros(m,n,p,...) 
B = zeros([m n p ...])
where m,n,p,... express the size for the 1st,2nd,3rd,...nth dimension.
If you're not looking for preallocation then your answer is too generic.
Something else I can think of is a generation of a random matrix, see rand and related functions.
All of the basic are well covered, wiht many examples in the getting started guide
EDIT
obj=VideoReader(video);
% (start)
%akhir deklarasi gambar yang ada di axes
numFrames = obj.NumberOfFrames;
waktu     = obj.Duration;
iterasi   = numFrames/waktu;
vidHeight = obj.Height;
vidWidth  = obj.Width;
disp(numFrames);
a = length(numFrames);
frames = zeros(vidHeight,vidWidth,iterasi);
c = 0;
if(~isempty(get(handles.nmvideo,'String')))
    try
        for n = 1:iterasi:numFrames
            c = c+1;
            frames(:,:,c) = read(obj,n);
            h = axes(handles.axes1);
            imshow(frames(:,:,c));
        end
    catch
        msgbox('Codec AVI tidak didukung atau Corupted file AVI','Error','error');
        return
    end
else
    msgbox('Anda harus memilih video terlebih dahulu','Error','error');
end
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