This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
| {"value":"United States", "text": "United States"}, | |
| {"value":"Ireland", "text": "Ireland"}, | |
| {"value":"United Kingdom", "text": "United Kingdom"}, | |
| {"value":"Afghanistan", "text": "Afghanistan"}, | |
| {"value":"Albania", "text": "Albania"}, | |
| {"value":"Algeria", "text": "Algeria"}, | |
| {"value":"American Samoa", "text": "American Samoa"}, | |
| {"value":"Andorra", "text": "Andorra"}, | |
| {"value":"Angola", "text": "Angola"}, | |
| {"value":"Anguilla", "text": "Anguilla"}, |