Either Improve Prefix Min Mask or make it obsolete #15
Description
Right now I apply prefix minimum scans of the image that are overlaid to find the dial rectangle.
Look over ParallelPrefix.py and prefixMin.c for reference on the current implementation.
There are some means by in which it can be improved:
- Parallelize prefixMin.c using a library like PThreads or OpenMP
- Binary filter over overlaid scans in order to make it strictly black and white (look at preprocessing() in number_detection.py for reference)
- Create an alternative method that doesn't require overlaying prefix min scans