If recognition is successful, the text editor starts and displays recognized text.
By default the external OCR program is gocr, and the external text editor is emacs. You should have gocr and emacs installed in order to use this command.
You can select other applications as external OCR and text editor. See Configuring external tools for details.
Note: Modern Linux OCR programs work relatively well for black English text on white paper, without graphics, scanned in Line Art or Grayscale 150 dpi. Other conditions don't produce acceptable results.
See also: