Source code for pyctools.components.deinterlace.intrafield

#  Pyctools - a picture processing algorithm development kit.
#  http://github.com/jim-easterbrook/pyctools
#  Copyright (C) 2015-17  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.
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#  You should have received a copy of the GNU General Public License
#  along with this program.  If not, see
#  <http://www.gnu.org/licenses/>.

__all__ = ['IntraField']
__docformat__ = 'restructuredtext en'

from pyctools.components.arithmetic import Arithmetic
from pyctools.components.deinterlace.simple import SimpleDeinterlace
from pyctools.components.interp.filtergenerator import FilterGenerator
from pyctools.components.interp.resize import Resize
from pyctools.core.compound import Compound

[docs]def IntraField(config={}): """Intra field interlace to sequential converter. This uses a vertical filter with an aperture of 8 lines, generated by :py:class:`~pyctools.components.interp.filtergenerator.FilterGenerator`. The aperture (and other parameters) can be adjusted after the :py:class:`IntraField` component is created. """ return Compound( config = config, deint = SimpleDeinterlace(), interp = Resize(), filgen = FilterGenerator(yaperture=8, ycut=50), gain = Arithmetic(func='data * pt_float(2)'), linkages = { ('self', 'input') : [('deint', 'input')], ('deint', 'output') : [('interp', 'input')], ('interp', 'output') : [('self', 'output')], ('filgen', 'output') : [('gain', 'input')], ('gain', 'output') : [('interp', 'filter')], } )