title: Captcha analysis question
body: <p>I'm trying to solve automatically some capthas, but with no luck yet. Here are some examples:
  <img src="https://i.stack.imgur.com/LcX1H.png" alt="332">
  <img src="https://i.stack.imgur.com/Fa7Qt.png" alt="581">
  <img src="https://i.stack.imgur.com/vmzKN.png" alt="763"></p>
  
  <p>There are always only 3 numbers in black and white colors.</p>
  
  <p>Can anyone help me with some links or point to examples with a similar type of captchas?
  Are there any good .net libraries for image processing that could be useful for me?</p>
  
  <p>Thanks in advance.</p>
  
  <p><strong>UPDATE:</strong> 
  A lot of people already have asked why am I doing it. So I will answer here :)</p>
  
  <p>My friend told that he would buy a case of beer to the person who will solve this task with a 25% accept rate. 
  I want to know if I have chances :D</p>