surtgis v0.14.4

Patch release. Opens ROADMAP item J ("Texture/imagery deepening
toward Orfeo ToolBox parity"). Adds Local Binary Patterns (Ojala
2002), a single-pass multi-feature GLCM, an analytical reference
test that pins the GLCM math to hand-computed values, and the
matching CLI surface.

Added

• texture::lbp — new module. Local Binary Patterns (Ojala,
  Pietikäinen & Mäenpää 2002) over the 3×3 ring of each pixel
  (P=8, R=1). Two variants:

  • LbpVariant::Standard — raw 8-bit code (0..=255), neighbours
    ordered clockwise from the top-left. Bit i is set when
    neighbour i ≥ centre.
  • LbpVariant::RotationInvariantUniform — Ojala riu2. For
    uniform patterns (≤2 circular bit transitions): the popcount
    of the code (0..=8). For non-uniform patterns: P+1 = 9.
    Collapses all rotations of a uniform pattern to a single
    value, the canonical feature for rotation-invariant
    classification.
    Border pixels and pixels with any NaN in the 3×3 neighbourhood
    are written as NaN. Output nodata metadata is set to NaN.
    Public API: lbp(&Raster<f64>, LbpParams) -> Result<Raster<f64>>.

• texture::haralick_glcm_multi — new entry point. Computes
  N GLCM features in a single pass by building the co-occurrence
  matrix once per pixel window and evaluating every requested
  feature on it. The GLCM construction dominates per-pixel cost,
  so requesting all 6 features runs ~6× faster than calling
  haralick_glcm six times. The existing haralick_glcm is a
  thin wrapper around the multi-pass entry point — behaviour is
  unchanged.

• CLI: surtgis texture lbp <INPUT> <OUTPUT> [--variant standard|riu2] — exposes LBP from the command line.

• CLI: surtgis texture glcm-all <INPUT> <OUTPUT_DIR> [--radius N] [--levels N] — computes all 6 Haralick textures in one
  pass and writes them as glcm_{energy,contrast,homogeneity, correlation,entropy,dissimilarity}.tif under OUTPUT_DIR.

Tests

• GLCM analytical reference: hand-computed normalised GLCM on
  a 3×3 binary raster (reference_binary_3x3) pinning all 6
  Haralick features against analytical values (closed-form
  features at 1e-12 tolerance, entropy and correlation at 1e-4).
  This is the first regression test that catches subtle math
  drift independently of cross-pixel consistency checks.

• GLCM multi vs per-feature equivalence: asserts the
  multi-pass output equals haralick_glcm cell-by-cell on a
  gradient raster at 1e-12 tolerance.

• LBP tests (8 new): all-brighter / all-darker neighbourhoods,
  known clockwise pattern, riu2 uniform/non-uniform / rotation
  invariance, NaN propagation, border-NaN output, raster-size
  error, and a unit test on the circular bit-transition helper.

20/20 texture tests pass. The new multi entry point is the
single source of truth for the GLCM math; haralick_glcm and
haralick_glcm_multi share it.

Backlog status

Survey 2026-06-06 status after this release: G ✓, H ✓, I backlog
(3D Tiles, trigger-driven), J in progress (texture +
multi-feature + LBP shipped; still to land in later patches:
GLCM-vs-scikit-image cross-validation, more texture features —
LBP-TOP, GLRLM, GLSZM — as user demand surfaces).