def __init__(self,
resize=None,
convert_type=1,
dither=False,
palette=None,
levels=1,
level_scale=4,
scale=Image.BICUBIC,
traversal=None):
"""Image scanner constructor.
Parameters
----------
resize : (`int`, `int`) or `None`, optional
If not `None`, resize images before scanning (default: `None`).
convert_type : `int`, optional
Image conversion type (default: 1).
dither : `bool`
If `True`, enable image dithering (default: `False`).
palette : `list` of `int`, optional
Image palette (default: `markovchain.image.util.palette(8, 4, 8)`).
levels : `int`, optional
Number of scanner levels (default: 1).
level_scale : `int` or `list` of `int`
Level scale factors.
scale : `int`, optional
Scale quality (default: `PIL.Image.BICUBIC`).
traversal : `dict` or `markovchain.image.traversal.Traversal` or `list` of (`dict` or `markovchain.image.traversal.Traversal`), optional
Level traversals (default: `markovchain.image.traversal.HLines()`).
"""
super().__init__()
self._levels = None
self._level_scale = None
self._level_scale_max = None
self._palette = None
self._traversal = None
self._traversal_max = None
self.min_size = None
self.palette_image = None
self.resize = tuple(resize) if resize is not None else None
self.palette = palette
self.convert = convert_type
self.levels = levels
self.level_scale = level_scale
self.dither = dither
if isinstance(scale, str):
scale = Image.__getattribute__(scale)
self.scale = scale
self.traversal = traversal
