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-rw-r--r--scripts/faces.py51
1 files changed, 51 insertions, 0 deletions
diff --git a/scripts/faces.py b/scripts/faces.py
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+++ b/scripts/faces.py
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+#!/usr/bin/env python3
+"""
+Detect faces in an image and return their bounding boxes and 128-D encodings.
+
+Usage: python3 faces.py <image_path>
+
+Stdout: JSON array — one object per face:
+ [{"box": [top, right, bottom, left], "encoding": [128 floats]}, ...]
+
+Returns "[]" when no faces are found or the image cannot be opened.
+Errors are written to stderr; stdout is always valid JSON.
+"""
+import sys
+import json
+
+
+def main():
+ if len(sys.argv) < 2:
+ print("[]")
+ return
+
+ path = sys.argv[1]
+ try:
+ import face_recognition
+ except ImportError as e:
+ print(f"face_recognition not available: {e}", file=sys.stderr)
+ print("[]")
+ return
+
+ try:
+ img = face_recognition.load_image_file(path)
+ except Exception as e:
+ print(f"Could not load {path}: {e}", file=sys.stderr)
+ print("[]")
+ return
+
+ try:
+ locations = face_recognition.face_locations(img, model="hog")
+ encodings = face_recognition.face_encodings(img, locations)
+ result = [
+ {"box": list(loc), "encoding": enc.tolist()}
+ for loc, enc in zip(locations, encodings)
+ ]
+ print(json.dumps(result))
+ except Exception as e:
+ print(f"Detection error for {path}: {e}", file=sys.stderr)
+ print("[]")
+
+
+if __name__ == "__main__":
+ main()