code: def _adb_minicap(self, scale=1.0):
          
          remote_file = tempfile.mktemp(dir='/data/local/tmp/', prefix='minicap-', suffix='.jpg')
          local_file = tempfile.mktemp(prefix='atx-minicap-', suffix='.jpg')
          (w, h, r) = self.display
          params = '{x}x{y}@{rx}x{ry}/{r}'.format(x=w, y=h, rx=int(w*scale), ry=int(h*scale), r=r*90)
          try:
              self.shell('LD_LIBRARY_PATH=/data/local/tmp', self.__minicap, '-s', '-P', params, '>', remote_file)
              self.pull(remote_file, local_file)
              image = imutils.open_as_pillow(local_file)
              return image
          finally:
              self.remove(remote_file)
              os.unlink(local_file)
docs: capture screen with minicap
  
          https://github.com/openstf/minicap