Refine texture metrics and update default weights for premium pattern detection

app/logic/__init__.py

@@ -8,6 +8,7 @@ from .constants import (
     OVERLAY_COLOR,
     EXCLUDE_BG_COLOR,
     EXCLUDE_BG_TOLERANCE,
+    WEIGHTS,
     PREVIEW_MAX_SIZE,
     RESET_EXCLUSIONS_ON_IMAGE_CHANGE,
     SUPPORTED_IMAGE_EXTENSIONS,
@@ -20,7 +21,7 @@ __all__ = [
     "LANGUAGE",
     "OVERLAY_COLOR",
     "EXCLUDE_BG_COLOR",
-    "EXCLUDE_BG_TOLERANCE",
+    "WEIGHTS",
     "PREVIEW_MAX_SIZE",
     "RESET_EXCLUSIONS_ON_IMAGE_CHANGE",
     "SUPPORTED_IMAGE_EXTENSIONS",

app/logic/constants.py

@@ -101,6 +101,15 @@ _OPTION_DEFAULTS = {
     "exclude_bg_tolerance": 5,
 }
 
+_WEIGHT_DEFAULTS = {
+    "match_all": 20,
+    "match_keep": 20,
+    "brightness": 10,
+    "grouping": 10,
+    "continuity": 20,
+    "border": 20,
+}
+
 
 def _extract_options(data: dict[str, Any]) -> dict[str, Any]:
     section = data.get("options")
@@ -122,6 +131,18 @@ def _extract_options(data: dict[str, Any]) -> dict[str, Any]:
     return result
 
 
+def _extract_weights(data: dict[str, Any]) -> dict[str, int]:
+    section = data.get("weights")
+    if not isinstance(section, dict):
+        return {}
+    result: dict[str, int] = {}
+    for key in _WEIGHT_DEFAULTS:
+        value = section.get(key)
+        if isinstance(value, int):
+            result[key] = max(0, min(100, value))
+    return result
+
+
 DEFAULTS = {**_DEFAULTS_BASE, **_extract_default_overrides(_CONFIG_DATA)}
 LANGUAGE = _extract_language(_CONFIG_DATA)
 OPTIONS = {**_OPTION_DEFAULTS, **_extract_options(_CONFIG_DATA)}
@@ -129,3 +150,4 @@ RESET_EXCLUSIONS_ON_IMAGE_CHANGE = OPTIONS["reset_exclusions_on_image_change"]
 OVERLAY_COLOR = OPTIONS["overlay_color"]
 EXCLUDE_BG_COLOR = OPTIONS["exclude_bg_color"]
 EXCLUDE_BG_TOLERANCE = OPTIONS["exclude_bg_tolerance"]
+WEIGHTS = {**_WEIGHT_DEFAULTS, **_extract_weights(_CONFIG_DATA)}