Struct Segmentation 

pub struct Segmentation {
    pub xmin: f32,
    pub ymin: f32,
    pub xmax: f32,
    pub ymax: f32,
    pub segmentation: TensorDyn,
}

A segmentation result paired with the normalized bounding box that describes the spatial extent of segmentation.

Segmentation bounds are for rendering masks, and DetectBox.bbox for IoU evaluation, drawing detection rectangles, etc. The mask region always encloses the detection bbox.

The xmin/ymin/xmax/ymax fields describe the mask region — the proto-grid-aligned crop the segmentation tensor was sliced from. They are quantized to the proto grid step (1/proto_height and 1/proto_width, typically 1/160), so the region’s origin floors and its extent ceils relative to the companion DetectBox’s bbox. The detection bbox itself stays un-snapped (see EDGEAI-1304).

Fields

xmin: f32

Left-most normalized coordinate of the mask region (proto-grid floor of the companion DetectBox.bbox.xmin).

ymin: f32

Top-most normalized coordinate of the mask region (proto-grid floor of the companion DetectBox.bbox.ymin).

xmax: f32

Right-most normalized coordinate of the mask region (proto-grid ceil of the companion DetectBox.bbox.xmax).

ymax: f32

Bottom-most normalized coordinate of the mask region (proto-grid ceil of the companion DetectBox.bbox.ymax).

segmentation: TensorDyn

Mask data, shape [H, W, C], dtype U8.

For instance segmentation (e.g. YOLO): C=1 — per-instance mask with continuous sigmoid confidence values quantized to u8 (0 = background, 255 = full confidence). Renderers typically threshold at 128 (sigmoid 0.5) or use smooth interpolation for anti-aliased edges.

For semantic segmentation (e.g. ModelPack): C=num_classes — per-pixel class scores where the object class is the argmax index.

A TensorDyn rather than an ndarray::Array3<u8>, matching ProtoData. That is what keeps this crate free of an ndarray dependency; callers who want ndarray ergonomics already have TensorMapTrait::view behind the existing optional ndarray feature.

Trait Implementations

impl Debug for Segmentation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.