import xml.dom.minidom as m
import Image

def main(filename):
    doc = m.parse(filename)
    go = doc.getElementsByTagName("GroundOverlay")[0]
    first_icon = go.getElementsByTagName("Icon")[0]
    href = first_icon.getElementsByTagName("href")[0]
    url = href.firstChild.nodeValue
    file = Image.open(url)
    size = file.size

    north = go.getElementsByTagName("north")[0].firstChild.nodeValue
    south = go.getElementsByTagName("south")[0].firstChild.nodeValue
    west = go.getElementsByTagName("west")[0].firstChild.nodeValue
    east = go.getElementsByTagName("east")[0].firstChild.nodeValue

    return """-gcp 0 0 %s %s -gcp %s 0 %s %s -gcp %s %s %s %s -gcp 0 %s %s %s""" % ( west, north, size[0], east, north, size[0], size[1], east, south, size[1], west, south) 

if __name__ == "__main__":
    import sys
    print main(sys.argv[1])