fullfile returns error. how to properly use it to perform this code below

i am trying to simulate the MEEM tracking algorith but when i run i got the following error that is difficult for me to solve

>> demo
Error using horzcat
The following error occurred converting from logical to char:
Conversion to char from logical is not possible.

Error in MEEMTrack (line 29)
D = dir(fullfile(input,['*.', ext]));

how can i solve it?

[Adam]

You haven't told us what ext is.

You can debug and easily look what this is yourself and whether you can concatenate it with '*.' or not.

[soro]

extension of file like png,jpg

Answer 1

[OCDER]

Seems like ext is a logical value with the value of 1 or 0. The following will give you the same error message:

['a' 1>0]  %Error: Conversion to char from logical is not possible.

Probably not an issue with your variable input, since a different error would result like this:

fullfile(1>0, ['*.jpg'])  %Error: All inputs must be character vectors or cell arrays of character vectors.

Use the debugger tool or print out the variables before the error:

disp(input)
disp(ext)
disp(fullfile(input,['*.', ext]))

Also, DO NOT label your variable as " input ", as this is a function in Matlab for asking users for inputs. See doc on input

[soro]

you were right it gave me .data/basketball/img 1