Extract Image Dimensions with SIPS

Script

import java.util.regex.*;
String[] lines = in.split("\n");
Matcher w = Pattern.compile(".*pixelWidth: (\\d+)").matcher(lines[1]);
Matcher h = Pattern.compile(".*pixelHeight: (\\d+)").matcher(lines[2]);
if (!w.matches())
  throw new Exception("did not find pixelWidth in '"+lines[1]+"'");
else if (!h.matches())
  throw new Exception("did not find pixelHeight in '"+lines[2]+"'");
else
  out = w.group(1) + "x" + h.group(1);