def negate(self):
        return self._new_instance(-self.matrix)
Save image to file or stream
dataset/ETHPy150Open jimmycallin/pydsm/pydsm/indexmatrix.py/IndexMatrix.negate--crossover with--dataset/ETHPy150Open kleientertainment/ds_mod_tools/pkg/win32/Python27/Lib/site-packages/PIL/Image.py/Image.save