(self, matrix)
Set the stored matrix for the image. You need to pass in the pixel
        to mm space conversion matrix. Unsetting can be done by passing `None`.
Set the stored matrix for the image. You need to pass in the pixel
        to mm space conversion matrix. Unsetting can be done by passing `None`.
Set the stored matrix for the image . You need to pass in the pixel to mm space conversion matrix . Unsetting can be done by passing None .
def set_px_to_mm(self, matrix):
        """Set the stored matrix for the image. You need to pass in the pixel
        to mm space conversion matrix. Unsetting can be done by passing `None`.
        """
        if matrix is not None:
            self.obj.raw_matrix = tuple(matrix)
        else:
            self.obj.raw_matrix = None
def set_px_to_mm ( self , matrix ) : if matrix is not None : self . obj . raw_matrix = tuple ( matrix ) else : self . obj . raw_matrix = None