title: Tesseract accuracy in screenshot
body: <p>I'm trying to fetch score info from a Dota2 screenshot (disregard the "wrong" boxes on the borders)</p>
  
  <p><a href="https://i.stack.imgur.com/yIFdx.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/yIFdx.jpg" alt="original image"></a></p>
  
  <p>but I can't seem to get a good enough accuracy</p>
  
  <p><a href="https://i.stack.imgur.com/YerTn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/YerTn.png" alt="after tesseract"></a>
  I'm applying these filters to the image</p>
  
  <pre class="lang-py prettyprint-override"><code>bw_image = cv2.bitwise_not(img)
  bw_image = cv2.cvtColor(bw_image, cv2.COLOR_BGR2GRAY)
  </code></pre>
  
  <p>and this config to tesseract
  <code>config = ("-l eng --oem 1 --psm 7")</code></p>
  
  <p>In the screenshot provided the <strong>ROI</strong> was resized to (50,50) but resizing doesn't impact accuracy consistently</p>
  
  <p>How can I improve my results? I searched how to train/improve a tesseract model but it seems to much work for what I want.</p>