pleasee please i need help with this code in app designer

im working on appdesigner this is the code for a button to import an image to an axes(the place for the image to appear in) the interface is shown down left /the name of the axes is UIAxes (the place where i want my picture to be shown) but i keep getting this error and when the image imports ,its isshown in a different tab not in the wated place in my interface (UIAxes)what the solution please and heres the image

Answer 1

[DGM]

The character 'a' isn't valid data for plot(). You might mean

plot(app.UIAxes,a)

... but passing an image to plot() isn't likely to do anything but create a bunch of nonsense.

That said, you're already displaying the image a by doing

imshow(a);

... so I don't see why the plot() call is even necessary. You could perhaps be more explicit with imshow():

imshow(a,'parent',app.UIAxes);

As an aside, I don't know why you're setting the 'filename' field to a. Why would a filename be image data? Maybe you meant

setappdata(0,'filename',filename)

or

setappdata(0,'filename',fullfilename)