Try modifying this code. I used it to develop a GUI to upload an image. If you are unable to do so or have any doubt feel free to message.

Regards and luck for your project

function Browse_Callback(hObject, eventdata, handles)

[p,q]=uigetfile('*.jpg');

im=imread([q,p]);

sz=size(size(im));

if(sz(2)==3)

axes(handles.axes1);

imshow(im);

else

axes(handles.axes1);

imshow(im);

end

handles.im=im;

guidata(hObject, handles);

Why would you not simply use textscan to read the file?

You present a file selector box to the user (as in the above example), open the file, read it with textscan and do all the necessary postprocessing.

hi,We act as follows:

clc

fid = fopen('mysindata.txt', 'r');

a = fscanf(fid, '%f', [1 inf])

% It has one row.

plot(a,sin(a))

fclose(fid)

The command fopen to open the file and work in preparation for its opening statement at the bottom of the r option is command means reading is help and where you have to mention that only the MATLAB permission to read the file.

His command fscanf to read the data and transferring them to the matrix is like a here we only have one column of the data we have, and just as with recourse when using fprintf happens to work with it. At the end of the command [inf 1] to MATLAB says that a column will read to the end