# Base configuration for the synthetic signed bank document generator.
#
# This file defines every default value used by src.config.schema.PipelineConfig.
# User configs (see configs/generate.yaml, configs/examples/*.yaml) are merged
# on top of this file, so they only need to specify what they want to change.
#
# Any numeric placement/augmentation "strength"-like value may be given either
# as a fixed scalar (e.g. `0.4`) or as a range (e.g. `{min: 0.2, max: 0.6}`),
# which is resolved by a seeded RNG independently for every generated sample.

seed: 1234

paths:
  image_dir: image
  dataset_dir: dataset
  annotations_dir: annotations
  output_dir: output
  cache_dir: output/.cache

generation:
  count: 10
  workers: 1
  save_visualization: false
  overwrite: false
  run_validation: true
  start_index: 1
  filename_prefix: sample
  filename_digits: 6

document:
  template: null   # null = pick uniformly at random (deterministically, via seed)
  page: null       # null = use the template's first page

signer:
  name: null       # null = generate a deterministic synthetic name
  role: null       # null = use the signature box's annotated role

signature_selection:
  source_filter: genuine   # genuine | forged | any
  signature_id: null       # null = pick uniformly at random from the filtered pool

placement:
  x_offset: 0.0
  y_offset: 0.0
  rotation_deg:
    min: -4.0
    max: 4.0
  scale_factor:
    min: 0.78
    max: 0.95
  anchor_point: center
  margin: 0.08
  misplacement_probability: 0.12
  misplacement_strength: 0.35
  allow_partial_outside: false

rendering:
  blend_mode: multiply
  ink_opacity:
    min: 0.75
    max: 0.95
  blur_sigma:
    min: 0.15
    max: 0.55
  feather_px:
    min: 0.5
    max: 1.8
  scanner_noise: 0.02
  anti_alias: true

augmentation:
  rotation:
    enabled: false
    strength: 0.0
    probability: 0.0
    seed: null

  stroke_dilation:
    enabled: false
    strength: 0.2
    probability: 0.25
    seed: null

  motion_blur:
    enabled: false
    strength: 0.2
    probability: 0.15
    seed: null

  gaussian_blur:
    enabled: true
    strength: 0.15
    probability: 0.3
    seed: null

  perspective:
    enabled: false
    strength: 0.1
    probability: 0.1
    seed: null

  scanner_noise:
    enabled: true
    strength: 0.06
    probability: 1.0
    seed: null

  salt_pepper:
    enabled: false
    strength: 0.03
    probability: 0.15
    seed: null

  jpeg_compression:
    enabled: true
    strength: 0.3
    probability: 0.5
    seed: null
    min_quality: 35
    max_quality: 90

  contrast:
    enabled: true
    strength: 0.15
    probability: 0.4
    seed: null

  gamma:
    enabled: false
    strength: 0.15
    probability: 0.2
    seed: null

  coffee_stain:
    enabled: false
    strength: 0.4
    probability: 0.1
    seed: null

  stain:
    enabled: false
    strength: 0.4
    probability: 0.1
    seed: null
    type: random

  shadow:
    enabled: true
    strength: 0.35
    probability: 0.4
    seed: null
    type: random

  crumple:
    enabled: false
    strength: 0.2
    probability: 0.15
    seed: null
    wrinkle_density: 0.4

  discoloration:
    enabled: true
    strength: 0.2
    probability: 0.5
    seed: null
    tone: random

  page_tilt:
    enabled: true
    strength: 0.3
    probability: 0.3
    seed: null

  dust:
    enabled: false
    strength: 0.2
    probability: 0.2
    seed: null

  scanner_streaks:
    enabled: false
    strength: 0.2
    probability: 0.1
    seed: null

  ink_fading:
    enabled: false
    strength: 0.3
    probability: 0.2
    seed: null

  ink_bleed:
    enabled: false
    strength: 0.25
    probability: 0.15
    seed: null

quality:
  case_type: null
  notes: null
  scanner_quality: 0.85
  paper_quality: 0.85
  render_quality: 0.85

difficulty:
  misplacement: 0.35
  whitespace: 0.20
  faintness: 0.20
  smallness: 0.15
  low_texture: 0.10
  easy_threshold: 0.33
  hard_threshold: 0.66

validation:
  strict: false
  max_coordinate_epsilon: 0.5