title: Which OCR Engine is better: Tesseract or OCRopus?
body: <p>I have tried Tesseract with iPhone and assessed its accuracy to be 70% without image preprocessing. I also noticed that it might be poor in extracting digits. I have heard about OCRopus OCR engine: which is better, Tesseract or OCRopus, in terms of digit extraction and if my image preprocessing is low?<br>
  Has anyone run tests using both engines comparing the results using the usual metrics? </p>