Path finding based on an image

I know its possible to create a path finding algorithm based on an image... That is, if the color map is blue then there is water, if it is brown then there is land. So detection of land and water is not the problem.

What I want to know is, is there an easy way to set up a path finder aside having a for loop try all the possibilities? The loop should follow logical paths rather than iterate through each turn...

[427 byte] By [qmanqmana] at [2007-10-3 3:07:55]