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borders

Classes:

Functions:

  • fix_line_brightness –

    Fix darkened or brightened luma rows or columns using manual level adjustments.

bore

Bases: CustomEnum

Methods:

  • __call__ –

    BB-mod style border deringer.

Attributes:

  • BALANCE (bore) –

    Uses linear least squares to calculate the best multiplier for each line.

  • FIX_BRIGHTNESS (bore) –

    Multiply every pixel by an average ratio of each pixel in a line to its nearest pixel in the next line.

BALANCE class-attribute instance-attribute 

BALANCE: bore = object()

Uses linear least squares to calculate the best multiplier for each line.

FIX_BRIGHTNESS class-attribute instance-attribute 

FIX_BRIGHTNESS: bore = object()

Multiply every pixel by an average ratio of each pixel in a line to its nearest pixel in the next line.

__call__ 

__call__(
    clip: VideoNode,
    left: int | Sequence[int] = 0,
    right: int | Sequence[int] = 0,
    top: int | Sequence[int] = 0,
    bottom: int | Sequence[int] = 0,
    planes: PlanesT = None,
    **kwargs: KwargsT
) -> VideoNode

BB-mod style border deringer.

:param clip: Clip to process. :param left: Number of pixels to adjust on the left border. :param right: Number of pixels to adjust on the right border. :param top: Number of pixels to adjust on the top border. :param bottom: Number of pixels to adjust on the bottom border. :param planes: Planes to process. Default: All planes.

:return: Clip with borders adjusted.

Source code in vsadjust/borders.py 
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def __call__(
    self, clip: vs.VideoNode,
    left: int | Sequence[int] = 0,
    right: int | Sequence[int] = 0,
    top: int | Sequence[int] = 0,
    bottom: int | Sequence[int] = 0,
    planes: PlanesT = None, **kwargs: KwargsT
) -> vs.VideoNode:
    """
    BB-mod style border deringer.

    :param clip:        Clip to process.
    :param left:        Number of pixels to adjust on the left border.
    :param right:       Number of pixels to adjust on the right border.
    :param top:         Number of pixels to adjust on the top border.
    :param bottom:      Number of pixels to adjust on the bottom border.
    :param planes:      Planes to process. Default: All planes.

    :return:            Clip with borders adjusted.
    """

    func = FunctionUtil(clip, self.__class__, planes, (vs.YUV, vs.GRAY), 32)

    values = list(zip(*map(func.norm_seq, (left, right, top, bottom))))

    if any(x < 0 for x in chain(*values)):
        raise CustomValueError('Negative values are not allowed!', func.func)

    if not any(x != 0 for x in chain(*values)):
        return clip

    try:
        if self == self.FIX_BRIGHTNESS:
            plugin = core.bore.FixBrightness
        elif self == self.BALANCE:
            plugin = core.bore.Balance
        else:
            raise NotFoundEnumValue
    except AttributeError:
        raise CustomValueError(
            'Could not find this bore function! Make sure you\'re using an up-to-date version of Bore.',
            func.func, dict(function=self)
        )
    except NotFoundEnumValue:
        raise NotFoundEnumValue(
            'Invalid bore enum!', func.func, dict(member=self, valid_function=bore.__members__.keys())
        )

    proc_clip: vs.VideoNode = func.work_clip

    for plane in func.norm_planes:
        plane_values = values[plane]

        if not any(x != 0 for x in plane_values):
            continue

        proc_clip = plugin(proc_clip, *plane_values, plane=plane, **kwargs)

    return func.return_clip(proc_clip)

fix_line_brightness 

fix_line_brightness(
    clip: VideoNode, rows: dict[int, float] = {}, columns: dict[int, float] = {}
) -> VideoNode

Fix darkened or brightened luma rows or columns using manual level adjustments.

Adjustments are fix_levels calls where max/min in is moved by adjustment / 100 * peak - low. As such, adjustment values must lie in (-100, 100).

:param clip: The clip to process. :param rows: Rows and their adjustment values. Rows < 0 are counted from the bottom. :param columns: Columns and their adjustment values. Columns < 0 are counted from the left.

:return: Clip with adjusted rows and columns.

Source code in vsadjust/borders.py 
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def fix_line_brightness(
    clip: vs.VideoNode,
    rows: dict[int, float] = {},
    columns: dict[int, float] = {},
) -> vs.VideoNode:
    """
    Fix darkened or brightened luma rows or columns using manual level adjustments.

    Adjustments are fix_levels calls where max/min in is moved by adjustment / 100 * peak - low.
    As such, adjustment values must lie in (-100, 100).

    :param clip: The clip to process.
    :param rows: Rows and their adjustment values. Rows < 0 are counted from the bottom.
    :param columns: Columns and their adjustment values. Columns < 0 are counted from the left.

    :return: Clip with adjusted rows and columns.
    """
    func = FunctionUtil(clip, fix_line_brightness, 0, vs.GRAY, 32)

    fix = func.work_clip
    color_range = ColorRange.from_video(fix)
    peak = get_peak_value(fix, False, color_range)
    low = get_lowest_value(fix, False, color_range)
    low_to_peak = peak - low

    def _fix_line(clip: vs.VideoNode, is_row: bool, num: int, adjustment: float) -> vs.VideoNode:
        if 100 < adjustment < -100:
            raise ValueError("fix_line_brightness: adjustment values must be in (-100, 100)")

        if adjustment > 0:
            adj = lambda c: fix_levels(c, max_in=peak - low_to_peak * adjustment / 100, max_out=peak)  # noqa: E731
        elif adjustment < 0:
            adj = lambda c: fix_levels(c, min_in=low + low_to_peak * adjustment / 100, min_out=low)  # noqa: E731
        else:
            return clip
        if is_row:
            return rekt_partial(clip, top=num, bottom=clip.height - num - 1, func=adj)
        return rekt_partial(clip, left=num, right=clip.width - num - 1, func=adj)

    for row, adj in rows.items():
        if row < 0:
            row += clip.height
        fix = _fix_line(fix, True, row, adj)
    for col, adj in columns.items():
        if col < 0:
            col += clip.width
        fix = _fix_line(fix, False, col, adj)

    return func.return_clip(fix)