Perspective recovery of text using transformed ellipses. See full writeup at https://mzucker.github.io/2016/10/11/unprojecting-text-with-ellipses.html

• Python 2 or 3
• NumPy
• SciPy
• cv2 (from OpenCV 3.0 or later)
• matplotlib

Try running

python unproject_text.py deskew0.jpg