How to make a Video from 3D array

I have 3D matrix with dimension of 600x600x28 which the last index is number of frames and want to convert it to video file. I tried as a below but raised with error:

Unrecognized function or variable 'cmap'.

My code:

Orig = rand(600,600,28);

X = permute(Orig,[1 2 4 3]); % 4D matrix
movie = immovie(X,cmap); 
implay(movie);

Answer 1

[millercommamatt]

You never defined the variable cmap which is supposed to be a color map.

Try This:

Orig = rand(600,600,28);
camp=parula;
X = permute(Orig,[1 2 4 3]); % 4D matrix
movie = immovie(X,cmap); 
implay(movie);

[Hamed Bolandi]

Raised withh error below:

Error in immovie>parse_inputs (line 88)
        X = im2uint8(X,'indexed');
Error in immovie (line 38)
[X,map] = parse_inputs(varargin{:});

[millercommamatt]

I get the same error and I don't know why. The documentation for immovie says that double is an allowable input data type.

But, I have a fix: Do the conversion of the input array to uint8 yourself.

Orig = randi(256,600,600,28)-1;  % 0-255
cmap=parula;
X = permute(Orig,[1 2 4 3]); % 4D matrix
movie = immovie(uint8(X),cmap);
implay(movie);

[Hamed Bolandi]

The reason I was getting this error is because the function call immovie(X,map) requires X to be an indexed image. It means that the values of X must greater than 1. Therefore, changing the code like below solved the issue:

Orig = randi([1 255],600,600,1,28);
cmap=parula;
movie = immovie(Orig,cmap); 
implay(movie);