1. A method for creating seamlines in orthomosaic imagery using a cost, comprising the steps of: receiving, at an image analysis server, a plurality of input images; identifying, using a feature extraction server, a plurality of linear image features within the plurality of input images; computing a cost raster based at least in part on at least a portion of the plurality of image features identified, wherein costs are dependent at least in part on presence of similar linear features in two or more input images; automatically generating seamlines along at least some of the linear image features using cost minimization; and vectorizing the generated seamlines.