MATLAB: How to check if a file on a website exists

Question

I want to read in image files from my online database.

I would like to check my website to see if the file exists before attempting to load it into the workspace.

For Example I would like to do (simplified):

E = exist('http://www.mywebsite.com/images/1.png);
if E ~= 0
  IMG = imread('http://www.mywebsite.com/images/1.png);
else
  IMG = zeros(X,Y);
end

Thanks in Advance!

Answer 1

You could just use a try/catch block.

try
  IMG = imread('http://www.mywebsite.com/images/1.png);
catch
  IMG = zeros(X,Y);
end