KIE Grid Slice

Slice a grid image into equal tiles, with optional border cropping and gutter removal.

Inputs

IMAGE: Grid image batch (BHWC float32 0–1).
grid: Layout (2x2 or 3x3).
outer_crop_px: Pixels trimmed from each side before slicing.
gutter_px: Pixels removed between tiles inside the grid.
order: row-major (top-left → right, then down) or column-major (top-left → down, then right).
process_batch: first to slice only the first image in the batch, all to slice every image and concatenate tiles.
log: Enable console logging.

IMAGE: Tile batch (4 tiles for 2x2, 9 tiles for 3x3 per processed image), BHWC float32 in [0, 1].

Applies outer crop, then removes gutters, then slices into tiles.
Uses floor sizing when dimensions are not perfectly divisible; extra pixels on the right/bottom are dropped.
Validates crop/gutter to avoid zero or negative tile sizes; raises readable errors when impossible.
Ordering controls the tile sequence in the output batch. For example, row-major on 2x2 produces tiles in this order:
1. Top-left
2. Top-right
3. Bottom-left
4. Bottom-right