CODEWITHSUNDEEP
arraysmatlabmatrixcell
itend
itend

Reputation: 63

Generating Image From Cell Array Using Imagesc Matlab

I have a cell array (3 x 4), called output, containing a 1024 x 1024 matrix in each cell. I want to plot the 4 matrices in ouput{1,:}. Furthermore, I have a structure, called dinfo, which correspondingly contains the names of each matrix (field with matrix names = "name"). I want each image to be titled with its name. Here is the code I have written thus far:

for i = 1:length(output{1,:}) 
    figure 
    imagesc(output{1,i});
    colormap('jet')
    colorbar;
    title(num2str(dinfo.name(i)))
end

I keep getting the error that "length has too many input arguments". If I change the code to avoid the length function-related error:

for i = 1:4 
    figure 
    imagesc(output{1,i});
    colormap('jet')
    colorbar;
    title(num2str(dinfo.name(i)))
end

I get the error, "Expected one output from a curly brace or dot indexing expression, but there were 4 results".

Any thoughts on how I could resolve both of these errors?

Thank you for your time :)

Upvotes: 0

Views: 92

Answers (1)

AVK
AVK

Reputation: 2149

output{1,:} is a comma-separated list; it contains the 1024 matrices of the first row of output, so length has 1024 arguments. The best way to obtain the number of columns is using size(...,2):

for i = 1:size(output,2)
    figure 
    imagesc(output{1,i});
    colormap('jet')
    colorbar;
end

As for the second error, there is something wrong with dinfo.name; probably, it is also a comma-separated list because dinfo is a structure array. Try using dinfo(i).name instead of dinfo.name(i).

Upvotes: 1

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