def compute(self):
spec_params = self.get_input("spec_file_params")
spec_file_root = spec_params.spec_file_root
data_folder_path = spec_params.data_folder_path
scan_no = spec_params.scan_number
print spec_file_root
print data_folder_path
sf = SpecDataFile(spec_file_root, ccdpath=data_folder_path)
scan = sf[scan_no]
fp = FileProcessor(spec=scan)
fp.process()
arr_2d_stack = fp.getImage()
self.set_output("spec_img_stack", arr_2d_stack)
self.set_output("spec_file", self)
self.fp = fp
self.sf = sf
self.scan = scan