Automated Curtain Corner Detection in Python

I need a Python program that can automatically detect the corners of curtains in photographs with zero tolerance precision and no user interaction.

Key Requirements:
- The program should be able to process photographs taken indoors under artificial lighting.
- It should effectively handle medium resolution images.

Ideal Skills and Experience:
- Proficiency in Python programming.
- Experience with computer vision and image processing techniques.
- Familiarity with machine learning concepts could be beneficial.