feat: 新增42号人脸特征与72号B端关键点接口

hairline/framing.py

@@ -216,3 +216,16 @@ def normalize_portrait(photo, landmarks, profile=None):
         "reference_image_url": profile["reference_image_url"],
     }
     return image, moved, metadata
+
+
+class NoPortraitFaceError(ValueError):
+    """The portrait landmarker could not find a face."""
+
+
+def prepare_portrait(photo):
+    """Shared interface-52 preprocessing, including the same landmark model/profile."""
+    from .face_landmarks import get_landmarker
+    landmarks = get_landmarker().detect(cv2.cvtColor(photo, cv2.COLOR_BGR2RGB), include_iris=True)
+    if landmarks is None:
+        raise NoPortraitFaceError("未检出人脸")
+    return normalize_portrait(photo, landmarks)