1. A method, comprising: displaying a graphical user interface on a display surface of a computer; displaying in said graphical user interface a visual representation of a geographic area; generating a visual frame in said visual representation of said geographic area to bound a target area, causing: retrieval of a plurality of images from an image database, each correspondingly matched to target area locations within said target area; and display of said plurality of images on said display surface of said computer; selecting a subset of said plurality of images displayed on said display surface of said computer, each of said subset of said plurality of images correspondingly matched to said target area locations within said target area; and deleting a portion of images from said subset of said plurality images to correspondingly adjust said visual frame in said visual representation of said geographic area to exclude said target area locations matched to said portion of images deleted from said subset of said plurality of images displayed on said display surface.