can not get the generated image

[xiaodaiziyy]

when i use these code,i can not get the result
"output_image = self.StyleMakerFunc(content_path, style_path, number_of_iterations, resolution, modelType)
pixmap = QtGui.QPixmap(output_image.toqpixmap())
pixmap = pixmap.scaledToHeight(250)
self.output_frame.setPixmap(pixmap)
self.output_frame.setAlignment(QtCore.Qt.AlignCenter)
self.output_frame.show()"
i do not konw what the problem is???