Add unified_pipeline: merged signature-verification synthetic document generator

.gitattributes

@@ -35,3 +35,236 @@ saved_model/**/* filter=lfs diff=lfs merge=lfs -text
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unified_pipeline/.gitignore

@@ -0,0 +1,11 @@
+__pycache__/
+*.pyc
+.venv/
+venv/
+.pytest_cache/
+*.egg-info/
+
+output/*.png
+output/*.json
+output/visualizations/
+!output/.gitkeep

unified_pipeline/annotations/bank_doc_01.json

@@ -0,0 +1,35 @@
+{
+  "id": "bank_doc_01",
+  "source_image": "templates/scanned/guarantee/bank_doc_01.png",
+  "document_type": "bank_letter_of_guarantee",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        791,
+        1024
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 118,
+          "y1": 493,
+          "x2": 396,
+          "y2": 508,
+          "role": "Bank Officer",
+          "name": "Bank Officer"
+        },
+        {
+          "id": "sig2",
+          "x1": 118,
+          "y1": 700,
+          "x2": 404,
+          "y2": 715,
+          "role": "Notary Public",
+          "name": "Notary Public"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_02.json

@@ -0,0 +1,26 @@
+{
+  "id": "bank_doc_02",
+  "source_image": "templates/scanned/guarantee/bank_doc_02.png",
+  "document_type": "bank_letter_of_guarantee",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        1024,
+        559
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 150,
+          "y1": 434,
+          "x2": 420,
+          "y2": 458,
+          "role": "Bank Representative",
+          "name": "Michael Chen"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_03.json

@@ -0,0 +1,53 @@
+{
+  "id": "bank_doc_03",
+  "source_image": "templates/scanned/guarantee/bank_doc_03.png",
+  "document_type": "deed_of_guarantee",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        1024,
+        559
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 595,
+          "y1": 399,
+          "x2": 748,
+          "y2": 431,
+          "role": "Guarantor (Authorized Signatory)",
+          "name": "Guarantor"
+        },
+        {
+          "id": "sig2",
+          "x1": 805,
+          "y1": 399,
+          "x2": 955,
+          "y2": 431,
+          "role": "Bank Representative",
+          "name": "Lender"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "name_sig1",
+          "mode": "above_line",
+          "line_x": 606,
+          "line_y": 464,
+          "line_w": 136,
+          "box_id": "sig1"
+        },
+        {
+          "field": "name_sig2",
+          "mode": "above_line",
+          "line_x": 828,
+          "line_y": 464,
+          "line_w": 136,
+          "box_id": "sig2"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_04.json

@@ -0,0 +1,53 @@
+{
+  "id": "bank_doc_04",
+  "source_image": "templates/scanned/loan_forms/bank_doc_04.png",
+  "document_type": "corporate_bank_loan_agreement",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        1024,
+        559
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 580,
+          "y1": 435,
+          "x2": 750,
+          "y2": 475,
+          "role": "Borrower (Authorized Signatory)",
+          "name": "Borrower"
+        },
+        {
+          "id": "sig2",
+          "x1": 795,
+          "y1": 435,
+          "x2": 960,
+          "y2": 475,
+          "role": "Bank Representative",
+          "name": "Lender"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "name_sig1",
+          "mode": "above_line",
+          "line_x": 606,
+          "line_y": 482,
+          "line_w": 136,
+          "box_id": "sig1"
+        },
+        {
+          "field": "name_sig2",
+          "mode": "above_line",
+          "line_x": 828,
+          "line_y": 482,
+          "line_w": 136,
+          "box_id": "sig2"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_05.json

@@ -0,0 +1,53 @@
+{
+  "id": "bank_doc_05",
+  "source_image": "templates/scanned/loan_forms/bank_doc_05.png",
+  "document_type": "corporate_bank_loan_agreement",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        687,
+        1024
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 65,
+          "y1": 780,
+          "x2": 320,
+          "y2": 815,
+          "role": "Borrower",
+          "name": "Borrower"
+        },
+        {
+          "id": "sig2",
+          "x1": 370,
+          "y1": 780,
+          "x2": 625,
+          "y2": 815,
+          "role": "Authorized Signatory",
+          "name": "Lender"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "name_sig1",
+          "mode": "above_line",
+          "line_x": 72,
+          "line_y": 869,
+          "line_w": 251,
+          "box_id": "sig1"
+        },
+        {
+          "field": "name_sig2",
+          "mode": "above_line",
+          "line_x": 365,
+          "line_y": 869,
+          "line_w": 251,
+          "box_id": "sig2"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_06.json

@@ -0,0 +1,53 @@
+{
+  "id": "bank_doc_06",
+  "source_image": "templates/scanned/loan_forms/bank_doc_06.png",
+  "document_type": "corporate_bank_loan_agreement",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        1024,
+        559
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 90,
+          "y1": 421,
+          "x2": 345,
+          "y2": 433,
+          "role": "Borrower (Authorized Signatory)",
+          "name": "Borrower"
+        },
+        {
+          "id": "sig2",
+          "x1": 590,
+          "y1": 421,
+          "x2": 845,
+          "y2": 433,
+          "role": "Bank Representative",
+          "name": "Lender"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "name_sig1",
+          "mode": "above_line",
+          "line_x": 145,
+          "line_y": 465,
+          "line_w": 337,
+          "box_id": "sig1"
+        },
+        {
+          "field": "name_sig2",
+          "mode": "above_line",
+          "line_x": 621,
+          "line_y": 464,
+          "line_w": 289,
+          "box_id": "sig2"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_07.json

@@ -0,0 +1,44 @@
+{
+  "id": "bank_doc_07",
+  "source_image": "templates/scanned/mandate/bank_doc_07.png",
+  "document_type": "bank_mandate_attestation",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        1024,
+        1536
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 535,
+          "y1": 918,
+          "x2": 935,
+          "y2": 935,
+          "role": "Account Holder",
+          "name": "Account Holder"
+        },
+        {
+          "id": "sig2",
+          "x1": 345,
+          "y1": 973,
+          "x2": 700,
+          "y2": 990,
+          "role": "Bank Manager",
+          "name": "Bank Manager"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "name",
+          "mode": "above_line",
+          "line_x": 308,
+          "line_y": 516,
+          "line_w": 309
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_08.json

@@ -0,0 +1,53 @@
+{
+  "id": "bank_doc_08",
+  "source_image": "templates/scanned/mandate/bank_doc_08.png",
+  "document_type": "bank_account_verification_mandate",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        1024,
+        1536
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 345,
+          "y1": 672,
+          "x2": 495,
+          "y2": 696,
+          "role": "Account Holder",
+          "name": "Account Holder"
+        },
+        {
+          "id": "sig2",
+          "x1": 685,
+          "y1": 568,
+          "x2": 935,
+          "y2": 590,
+          "role": "Bank Manager",
+          "name": "Bank Manager"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "name_sig1",
+          "mode": "above_line",
+          "line_x": 308,
+          "line_y": 388,
+          "line_w": 169,
+          "box_id": "sig1"
+        },
+        {
+          "field": "name_sig2",
+          "mode": "above_line",
+          "line_x": 748,
+          "line_y": 463,
+          "line_w": 170,
+          "box_id": "sig2"
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/annotations/bank_doc_09.json

@@ -0,0 +1,44 @@
+{
+  "id": "bank_doc_09",
+  "source_image": "templates/scanned/mandate/bank_doc_09.png",
+  "document_type": "corporate_account_opening_mandate",
+  "pages": [
+    {
+      "page": 1,
+      "page_size": [
+        687,
+        1024
+      ],
+      "dpi": 300,
+      "signature_boxes": [
+        {
+          "id": "sig1",
+          "x1": 90,
+          "y1": 797,
+          "x2": 315,
+          "y2": 832,
+          "role": "First Authorised Signatory",
+          "name": "First Authorised Signatory"
+        },
+        {
+          "id": "sig2",
+          "x1": 350,
+          "y1": 797,
+          "x2": 575,
+          "y2": 832,
+          "role": "Second Authorised Signatory",
+          "name": "Second Authorised Signatory"
+        }
+      ],
+      "cosmetic_fields": [
+        {
+          "field": "company_name",
+          "mode": "below_line",
+          "line_x": 74,
+          "line_y": 164,
+          "line_w": 303
+        }
+      ]
+    }
+  ]
+}

unified_pipeline/configs/default.yaml

@@ -0,0 +1,247 @@
+# 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: templates/scanned
+  dataset_dir: data/raw/cedar
+  annotations_dir: annotations
+  output_dir: output
+  cache_dir: templates/procedural
+  # Additive signature sources merged into the same SignatureDataset (see
+  # src/signatures/signature_dataset.py). Copied into data/raw/ so this
+  # repo is self-contained (a standalone zip needs no sibling checkouts) --
+  # BHSig260 is capped to 8 genuine + 8 forged samples per writer (full
+  # archives are ~3.8GB combined; see unified_pipeline/README.md for the
+  # uncapped source location if you need the full archives).
+  signet_dir: data/raw/signet
+  gpds_dir: null   # not wired into the live generation path, excluded (see README)
+  bhsig260_hindi_dir: data/raw/bhsig260_hindi
+  bhsig260_bengali_dir: data/raw/bhsig260_bengali
+  # "both" by default, so a plain `python main.py` with no flags shows
+  # both template families, not just one. The one caveat: difficulty
+  # calibration (below) is a single global profile
+  # regardless of which provider a given sample lands on -- see README's
+  # "Difficulty calibration profiles" section. Override with
+  # `--set paths.template_provider=scanned` (or `procedural`) for a
+  # single-family batch.
+  template_provider: both
+  # Nothing excluded -- every discovered template is in the pool. See
+  # TemplateLoader's excluded_ids param / paths.excluded_template_ids
+  # if a template ever needs to be pulled (id-stable: excluding one
+  # doesn't renumber any other template's id).
+  excluded_template_ids: []
+
+generation:
+  count: 10
+  workers: 1
+  save_visualization: false
+  overwrite: false
+  run_validation: true
+  start_index: 1
+  filename_prefix: case
+  filename_digits: 6
+
+document:
+  template: null   # null = pick uniformly at random (deterministically, via seed)
+  page: null       # null = use the template's first page
+  # On by default -- fills a name/company-name field on both scanned and
+  # procedural templates so a generated batch doesn't look obviously
+  # synthetic (empty "Name of Account Holder:" etc. next to a real
+  # signature). See src/cosmetics/cosmetic_fields.py (procedural, full
+  # field set) and src/cosmetics/scanned_cosmetic_fields.py (scanned,
+  # CV-detected name field -- 7 of 9 templates; the other 2 are stock
+  # photos with no genuine blank field to fill).
+  enable_cosmetic_fields: true
+
+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

unified_pipeline/configs/examples/clean_easy.yaml

@@ -0,0 +1,31 @@
+# A "mostly easy" dataset preset: well-centered signatures, minimal
+# degradation. Useful for a sanity-check baseline or an "easy" evaluation
+# split.
+#
+#   python main.py --config configs/examples/clean_easy.yaml --count 500
+
+seed: 1000
+
+generation:
+  count: 500
+  workers: 4
+
+placement:
+  scale_factor: { min: 0.85, max: 0.98 }
+  rotation_deg: { min: -1.5, max: 1.5 }
+  margin: 0.1
+  misplacement_probability: 0.0
+  allow_partial_outside: false
+
+rendering:
+  ink_opacity: { min: 0.85, max: 0.98 }
+  blur_sigma: { min: 0.1, max: 0.25 }
+  scanner_noise: 0.01
+
+augmentation:
+  gaussian_blur: { enabled: false }
+  shadow: { enabled: false }
+  discoloration: { enabled: false }
+  page_tilt: { enabled: true, strength: 0.1, probability: 0.15 }
+  scanner_noise: { enabled: true, strength: 0.02, probability: 1.0 }
+  jpeg_compression: { enabled: true, strength: 0.15, probability: 0.3, min_quality: 80, max_quality: 95 }

unified_pipeline/configs/examples/hard_degraded.yaml

@@ -0,0 +1,47 @@
+# A "mostly hard" dataset preset: frequent misplacement, faint ink, heavy
+# scanner/paper degradation. Useful for stress-testing a downstream
+# detector/verifier or building a "hard" evaluation split.
+#
+#   python main.py --config configs/examples/hard_degraded.yaml --count 500
+
+seed: 9001
+
+generation:
+  count: 500
+  workers: 4
+
+quality:
+  case_type: "1d"
+  notes: "low-quality scan, batch 9001"
+
+placement:
+  scale_factor: { min: 0.35, max: 0.7 }
+  rotation_deg: { min: -12.0, max: 12.0 }
+  margin: 0.04
+  misplacement_probability: 0.45
+  misplacement_strength: { min: 0.3, max: 0.8 }
+  allow_partial_outside: true
+
+rendering:
+  ink_opacity: { min: 0.35, max: 0.65 }
+  blur_sigma: { min: 0.6, max: 1.4 }
+  feather_px: { min: 1.5, max: 3.0 }
+  scanner_noise: 0.05
+
+augmentation:
+  ink_fading: { enabled: true, strength: { min: 0.4, max: 0.8 }, probability: 0.5 }
+  motion_blur: { enabled: true, strength: { min: 0.3, max: 0.6 }, probability: 0.3 }
+  perspective: { enabled: true, strength: { min: 0.15, max: 0.3 }, probability: 0.3 }
+  coffee_stain: { enabled: true, strength: { min: 0.4, max: 0.8 }, probability: 0.25 }
+  stain: { enabled: true, strength: { min: 0.4, max: 0.8 }, probability: 0.3, type: random }
+  shadow: { enabled: true, strength: { min: 0.5, max: 0.9 }, probability: 0.6, type: random }
+  crumple: { enabled: true, strength: { min: 0.4, max: 0.8 }, probability: 0.4 }
+  discoloration: { enabled: true, strength: { min: 0.4, max: 0.7 }, probability: 0.7, tone: random }
+  page_tilt: { enabled: true, strength: { min: 0.5, max: 1.0 }, probability: 0.5 }
+  dust: { enabled: true, strength: { min: 0.3, max: 0.7 }, probability: 0.4 }
+  scanner_streaks: { enabled: true, strength: { min: 0.3, max: 0.6 }, probability: 0.3 }
+  salt_pepper: { enabled: true, strength: { min: 0.03, max: 0.09 }, probability: 0.35 }
+  jpeg_compression: { enabled: true, strength: 0.7, probability: 0.7, min_quality: 20, max_quality: 55 }
+
+validation:
+  strict: false

unified_pipeline/configs/examples/single_document_demo.yaml

@@ -0,0 +1,50 @@
+# Demonstrates every "single value or range" knob on one fixed template with
+# a fixed signer identity -- handy for iterating on how one specific
+# document/box combination looks before scaling up to a full batch run.
+#
+#   python main.py --config configs/examples/single_document_demo.yaml --count 1
+
+seed: 4242
+
+document:
+  template: bank_doc_03
+
+signer:
+  name: Jane Doe
+  role: Branch Manager
+
+signature_selection:
+  source_filter: genuine
+
+placement:
+  scale_factor: 0.84
+  rotation_deg: -3.0
+  x_offset: 8.0
+  y_offset: -4.0
+  misplacement_probability: 0.32
+
+generation:
+  count: 1
+  save_visualization: true
+
+augmentation:
+  coffee_stain:
+    enabled: true
+    strength: 0.42
+    probability: 1.0
+
+  shadow:
+    enabled: true
+    strength: 0.55
+    probability: 1.0
+    type: corner
+
+  crumple:
+    enabled: true
+    strength: 0.18
+    probability: 1.0
+
+  scanner_noise:
+    enabled: true
+    strength: 0.06
+    probability: 1.0

unified_pipeline/configs/examples/verification_cases.yaml

@@ -0,0 +1,34 @@
+# Signature-verification test-case generation. Set quality.case_type to one
+# of the 12 codes below to switch GeneratorContext into scenario-driven
+# generation: it renders the described scenario and stamps the sample's
+# metadata `verification` block with the matching ground-truth verdict/
+# reject_code. Left unset (the default), generation is completely unaffected.
+#
+#   python main.py --config configs/examples/verification_cases.yaml \
+#       --set quality.case_type=3a --count 10
+#
+# For "1d" (correct signer, but the scan itself is degraded) use
+# configs/examples/hard_degraded.yaml instead -- it already sets
+# `quality.case_type: "1d"` plus the matching degraded-scan overrides; this
+# file's job is everything else, where a clean/legible scan is expected.
+#
+# | code | scenario                                            | verdict | reject_code            |
+# |------|------------------------------------------------------|---------|-------------------------|
+# | 1a   | Correct signer signs normally                         | PASS    | -                       |
+# | 1b   | Correct signer, natural pen variation                 | PASS    | -                       |
+# | 1c   | Multi-signer form, both sign correctly                | PASS    | -                       |
+# | 1d   | Correct signer, scan degraded (see hard_degraded.yaml)| PASS    | -                       |
+# | 2a   | Box left completely blank                             | REJECT  | NO_SIGNATURE            |
+# | 2b   | Printed/typed name only, no handwriting               | REJECT  | NO_SIGNATURE            |
+# | 3a   | Wrong real person signs the box                       | REJECT  | IDENTITY_MISMATCH       |
+# | 3b   | Skilled-forgery sample used                           | REJECT  | IDENTITY_MISMATCH       |
+# | 4a   | Authorized signer, but wrong role's box               | REJECT  | ROLE_MISMATCH           |
+# | 4b   | Signer from a different form entirely                 | REJECT  | ROLE_MISMATCH           |
+# | 5a   | Required signer's box left empty                      | REJECT  | REQUIRED_SIGNER_ABSENT  |
+# | 5b   | Someone else signs in the required signer's place     | REJECT  | REQUIRED_SIGNER_ABSENT  |
+
+quality:
+  case_type: "1a"   # <- override with --set quality.case_type=<code>
+
+validation:
+  strict: false

unified_pipeline/configs/generate.yaml

@@ -0,0 +1,171 @@
+# Example large-batch dataset generation config.
+#
+# Merged on top of configs/default.yaml. Only values that differ from the
+# defaults need to be listed here. Run with:
+#
+#   python main.py --config configs/generate.yaml --count 10000
+#
+# (--count on the command line overrides generation.count below.)
+
+seed: 20240601
+
+paths:
+  output_dir: output
+
+generation:
+  count: 2000
+  workers: 4
+  save_visualization: false
+  overwrite: false
+  run_validation: true
+
+# document.template left as null -> every sample independently and
+# deterministically picks one of the 9 discovered templates.
+document:
+  template: null
+
+# signer.name/role left as null -> a synthetic name is generated per sample
+# and the role is taken from the chosen signature box's annotation.
+signer:
+  name: null
+  role: null
+
+signature_selection:
+  source_filter: genuine
+
+placement:
+  scale_factor:
+    min: 0.75
+    max: 0.98
+  rotation_deg:
+    min: -6.0
+    max: 6.0
+  margin: 0.07
+  misplacement_probability: 0.15
+  misplacement_strength:
+    min: 0.15
+    max: 0.5
+  allow_partial_outside: true
+
+rendering:
+  blend_mode: multiply
+  ink_opacity:
+    min: 0.7
+    max: 0.97
+  blur_sigma:
+    min: 0.15
+    max: 0.6
+  feather_px:
+    min: 0.4
+    max: 2.0
+  scanner_noise: 0.02
+
+augmentation:
+  stroke_dilation:
+    enabled: true
+    strength: { min: 0.1, max: 0.35 }
+    probability: 0.2
+
+  gaussian_blur:
+    enabled: true
+    strength: { min: 0.05, max: 0.3 }
+    probability: 0.3
+
+  motion_blur:
+    enabled: true
+    strength: { min: 0.1, max: 0.35 }
+    probability: 0.12
+
+  ink_fading:
+    enabled: true
+    strength: { min: 0.1, max: 0.5 }
+    probability: 0.2
+
+  ink_bleed:
+    enabled: true
+    strength: { min: 0.1, max: 0.4 }
+    probability: 0.15
+
+  perspective:
+    enabled: true
+    strength: { min: 0.05, max: 0.2 }
+    probability: 0.12
+
+  contrast:
+    enabled: true
+    strength: { min: 0.05, max: 0.3 }
+    probability: 0.4
+
+  gamma:
+    enabled: true
+    strength: { min: 0.05, max: 0.25 }
+    probability: 0.2
+
+  coffee_stain:
+    enabled: true
+    strength: { min: 0.2, max: 0.6 }
+    probability: 0.08
+
+  stain:
+    enabled: true
+    strength: { min: 0.2, max: 0.6 }
+    probability: 0.1
+    type: random
+
+  shadow:
+    enabled: true
+    strength: { min: 0.2, max: 0.6 }
+    probability: 0.35
+    type: random
+
+  crumple:
+    enabled: true
+    strength: { min: 0.1, max: 0.4 }
+    probability: 0.12
+    wrinkle_density: { min: 0.2, max: 0.7 }
+
+  discoloration:
+    enabled: true
+    strength: { min: 0.1, max: 0.4 }
+    probability: 0.45
+    tone: random
+
+  page_tilt:
+    enabled: true
+    strength: { min: 0.1, max: 0.5 }
+    probability: 0.3
+
+  dust:
+    enabled: true
+    strength: { min: 0.1, max: 0.4 }
+    probability: 0.2
+
+  scanner_streaks:
+    enabled: true
+    strength: { min: 0.1, max: 0.35 }
+    probability: 0.1
+
+  scanner_noise:
+    enabled: true
+    strength: { min: 0.02, max: 0.1 }
+    probability: 1.0
+
+  salt_pepper:
+    enabled: true
+    strength: { min: 0.01, max: 0.06 }
+    probability: 0.15
+
+  jpeg_compression:
+    enabled: true
+    strength: { min: 0.2, max: 0.6 }
+    probability: 0.5
+    min_quality: 40
+    max_quality: 92
+
+quality:
+  scanner_quality: { min: 0.6, max: 0.98 }
+  paper_quality: { min: 0.6, max: 0.98 }
+  render_quality: { min: 0.6, max: 0.98 }
+
+validation:
+  strict: false

unified_pipeline/configs/procedural_templates.yaml

@@ -0,0 +1,28 @@
+# Procedural-template profile -- switches the document source from scanned
+# photos (the default) to matplotlib-drawn documents ported from
+# projectA/utils/templatemaker.py (see src/templates/procedural_template_provider.py).
+#
+# The difficulty smallness/faintness reference constants are also
+# recalibrated here, matching projectA's own empirical finding: real
+# signature ink on these procedural templates is much smaller/lighter
+# relative to page area than the deck's generic literal constants assume
+# (see projectA/utils/difficulty_score.py's calibration comment, and
+# `unified_pipeline/README.md`). This profile is what makes "easy" reachable
+# for a signed (non-blank) case on procedural templates the way it is on
+# projectA today -- the scanned-template default profile deliberately keeps
+# the deck's literal constants, since that pipeline's own measurements
+# didn't show the same mismatch.
+#
+# Usage: python main.py --config configs/procedural_templates.yaml --count 20
+#        python main.py --set paths.template_provider=procedural --set difficulty.smallness_reference_area_ratio=0.003 ...  (equivalent, inline)
+
+paths:
+  template_provider: procedural
+
+document:
+  enable_cosmetic_fields: true
+
+difficulty:
+  smallness_reference_area_ratio: 0.003
+  faintness_dark_ref: 184.0
+  faintness_light_ref: 220.0