feat: refine boundary mapping to improve alignment of inner and outer source coordinates

2026-09-15 19:40:40 +08:00
parent 4035f5c9e4
commit 94130ff38f
2 changed files with 14 additions and 0 deletions
--- a/src/anyimage/operators/cutout_tool/boundary_padding.py
+++ b/src/anyimage/operators/cutout_tool/boundary_padding.py
@@ -51,6 +51,7 @@ def build_boundary_mapping(content_values, threshold, padding, target_shape=None
    )
    distance = padding * scale
    signed = ndimage.distance_transform_edt(mask) - ndimage.distance_transform_edt(~mask)
+    signed = np.where(signed != 0.0, signed - 0.5 * np.sign(signed), 0.0)
    inward_y = ndimage.sobel(signed, axis=0, mode="nearest")
    inward_x = ndimage.sobel(signed, axis=1, mode="nearest")
    length = np.hypot(inward_y, inward_x)