omr

omr is a simple python2 optical mark recognition script. It takes as input an image of an answered answer sheet and outputs which alternatives were marked. Scroll down for an example.

Usage

$ python2 omr.py --help
usage: omr.py [-h] --input INPUT [--output OUTPUT] [--show]

optional arguments:
  -h, --help       show this help message and exit
  --input INPUT    Input image filename
  --output OUTPUT  Output image filename
  --show           Displays annotated image

Example

$ python omr.py --input img/answered-sheet-photo.jpg  --output /tmp/results.png --show

Q1: A
Q2: C
Q3: C
Q4: E
Q5: N/A
Q6: N/A
Q7: A
Q8: N/A
Q9: N/A
Q10: N/A

In this case, we used the following image as input:

And got the following output:

Anwer Sheet

The answer sheet is available in the sheet/ directory.