title: Check if same image has already been uploaded by comparing BASE64?
body: <p>My question is concerning an idea I had, where I could check if an image has already been uploaded by comparing their base64-encoded strings...</p>
  
  <p>Example use-case would be to find duplicates in your database...</p>
  
  <p>The operation would be pretty big i guess - first converting the image to base64and then using something like "strcmp()" to compare..</p>
  
  <p>Not sure if this would make a lot of sense but what do you think of the idea?</p>
  
  <p>Would it be too big of an operation? How accurate would it be? Does the idea make any sense?</p>