MATLAB: Extracting individual file data from uigetfile multiselect

Question

I want to use the multiselect feature of uigetfile, and I have done this successfully, returning the pathname and filenames of all of the files that I want. The files Im selecting are images and I want to show the first image in the series in a figure, but I am unable to do this, an error message pops up saying:

"Expected input number 1, I, to be one of these types:

double, single, uint8, uint16, uint32, uint64, int8, int16, int32, int64, logical

Instead its type was cell."

How can I convert the image location from a "cell" to something I can use? My current code:

"[filename pathname] = uigetfile('*.*', 'Pick Images', 'Multiselect', 'on');

image_matrix = fullfile(pathname, filename(1))

imshow(image_matrix)"

Answer 1

To access the data in a cell array you need to use curly braces, not parentheses:

filename{1}

because this

filename(1)

will simply return the first cell, and not the data inside the cell.

https://www.mathworks.com/help/matlab/matlab_prog/access-data-in-a-cell-array.html