#!/usr/bin/env python
# Pyctools - a picture processing algorithm development kit.
# http://github.com/jim-easterbrook/pyctools
# Copyright (C) 2014-16 Pyctools contributors
#
# This program is free software: you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see
# <http://www.gnu.org/licenses/>.
import PIL.Image
__all__ = ['ImageDisplay']
__docformat__ = 'restructuredtext en'
from pyctools.core.base import Transformer
[docs]
class ImageDisplay(Transformer):
"""View still image file.
This is a "pass through" component that can be inserted anywhere in a
pipeline. It displays the first frame it receives using
:py:meth:`PIL.Image.Image.show`.
"""
def initialise(self):
self.done = False
def transform(self, in_frame, out_frame):
if self.done:
return True
image = in_frame.as_PIL()
image.show()
self.done = True
return True