title: ImageMagick remove background noise
body: <p>In order to be better prepared for the OCR process, I want to remove the background noise on my images(typically this is a scanned image).</p>
  
  <p>This is the example:</p>
  
  <p><a href="https://i.stack.imgur.com/3foBc.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3foBc.png" alt="enter image description here"></a></p>
  
  <p>Is there with <code>magick.exe</code> command any approaches how to remove the noise from the images like this? If so, could you please show an example.</p>
  
  <p><strong>UPDATED</strong></p>
  
  <p>I use ImageMagick-7.0.7-Q16 on Windows 10</p>