title: Missing slf4j in tess4j
body: <p>I want to test tess4j to do OCR. I used the following tutorial for a first example: <a href="http://tess4j.sourceforge.net/codesample.html" rel="nofollow">http://tess4j.sourceforge.net/codesample.html</a>
  I included the required libraries, but I am getting the following error:</p>
  
  <pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
      at net.sourceforge.tess4j.Tesseract.&lt;clinit&gt;(Unknown Source)
      at tess4jexample.TesseractExample.main(TesseractExample.java:10)
  Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
      at java.net.URLClassLoader.findClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
      at java.lang.ClassLoader.loadClass(Unknown Source)
      ... 2 more
  </code></pre>
  
  <p>Does anyone knows a solution for this?</p>