MATLAB: Use a variable name with VideoWriter

videowriter

I am trying to create a program to create videos from images. I would like to use inputdlg to create a variable file name. I can use a selected path. However, it doesn't appear that VideoWriter allows you to use a variable name. Is there a way around this?

Best Answer

VideoWriter has no problems with variable file names.

[filename, pathname] = uiputfile('*.avi', 'Select an output file');
if ~ischar(filename); return; end   %user cancel
fullname = fullfile(pathname, filename);
obj = VideoWriter(fullname);
...

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MATLAB: Conversion to cellstr from logical is not possible.

imgetfile() does not return the pathname, instead, it returns the full file address in the first output argument. The second argument in the output pathName is not a char variable but a boolean variable. Therefore it gives the error that cannot convert from logical to cellstr. You can simply use it like this

[fileName, isCancelled] = imgetfile();
if ~isCancelled  % it will not run if use press cancel button instead if choosing an image.
   filenames = fileName;
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end

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    [filename, pathname] = uigetfile('*.png', 'Select an image?');
    if ~ischar(filename); return; end      %user cancelled
    filepath = fullfile(pathname, filename);
    Img = imread(filepath);

Best Answer

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MATLAB: Conversion to cellstr from logical is not possible.

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