Trouble getting im2double to show image

Hi, I'm currently trying to figure out how to display an image after changing it's class type in Matlab. My code is:

im = imread('Pic.png');
imshow('Pic.png');
title ('pic')
im2 = im2double(im);
imshow ('im2')
title ('DoublePic')

but running it just gives an error message for imshow('im2'), can someone explain why this is happening? Thanks

Answer 1

[KSSV]

imshow ('im2')

In the above line im2 is considered as a string, this is not correct. It should be:

imshow (im2)