About a week ago I wrote an article where I hypothesized that I could find the length of a coast-line using an algorithm based on a map or satellite image.
This is part 3 of the programming part of that series.
The task here was to find individual sections of the image that represent islands or land-masses. This way I can target a specific land-mass to be measured and discard the rest. (Ireland, France, The Isle of Mann,...etc).