42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
from __future__ import annotations
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import numpy as np
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from backend.node_registry import register_node
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from backend.execution_context import emit_preview
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from backend.data_types import DataField, encode_preview
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from backend.nodes.helpers import _mask_overlay
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@register_node(display_name="Mask Invert")
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class MaskInvert:
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_CUSTOM_PREVIEW = True
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@classmethod
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def INPUT_TYPES(cls):
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return {
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"required": {
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"mask": ("IMAGE",),
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},
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"optional": {
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"field": ("DATA_FIELD",),
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}
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}
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OUTPUTS = (
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('IMAGE', 'mask'),
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)
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FUNCTION = "process"
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DESCRIPTION = "Invert a binary mask — swap masked and unmasked regions."
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_broadcast_fn = None
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_current_node_id: str = ""
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def process(self, mask: np.ndarray, field: DataField | None = None) -> tuple:
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out = np.where(mask > 127, np.uint8(0), np.uint8(255))
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if field is not None:
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overlay = _mask_overlay(field, out)
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emit_preview(encode_preview(overlay))
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return (out,)
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