feat: Update examples and some minor changes to UniFace API (#28)

* chore: Style changes and create jupyter notebook template

* docs: Update docstring for detection

* feat: Keyword only for common parameters: model_name, conf_thresh, nms_thresh, input_size

* chore: Update drawing and let the conf text optional for drawing

* feat: add fancy bbox draw

* docs: Add examples of using UniFace

* feat: Add version to all examples

CONTRIBUTING.md

@@ -0,0 +1,58 @@
+# Contributing to UniFace
+
+Thank you for considering contributing to UniFace! We welcome contributions of all kinds.
+
+## How to Contribute
+
+### Reporting Issues
+
+- Use GitHub Issues to report bugs or suggest features
+- Include clear descriptions and reproducible examples
+- Check existing issues before creating new ones
+
+### Pull Requests
+
+1. Fork the repository
+2. Create a new branch for your feature
+3. Write clear, documented code with type hints
+4. Add tests for new functionality
+5. Ensure all tests pass
+6. Submit a pull request with a clear description
+
+### Code Style
+
+- Follow PEP8 guidelines
+- Use type hints (Python 3.10+)
+- Write docstrings for public APIs
+- Keep code simple and readable
+
+## Development Setup
+
+```bash
+git clone https://github.com/yakhyo/uniface.git
+cd uniface
+pip install -e ".[dev]"
+```
+
+## Running Tests
+
+```bash
+pytest tests/
+```
+
+## Examples
+
+Example notebooks demonstrating library usage:
+
+| Example | Notebook |
+|---------|----------|
+| Face Detection | [face_detection.ipynb](examples/face_detection.ipynb) |
+| Face Alignment | [face_alignment.ipynb](examples/face_alignment.ipynb) |
+| Face Recognition | [face_analyzer.ipynb](examples/face_analyzer.ipynb) |
+| Face Verification | [face_verification.ipynb](examples/face_verification.ipynb) |
+| Face Search | [face_search.ipynb](examples/face_search.ipynb) |
+
+## Questions?
+
+Open an issue or start a discussion on GitHub.
+

QUICKSTART.md

@@ -75,7 +75,13 @@ scores = [f['confidence'] for f in faces]
 landmarks = [f['landmarks'] for f in faces]
 
 # Draw on image
-draw_detections(image, bboxes, scores, landmarks, vis_threshold=0.6)
+draw_detections(
+    image=image,
+    bboxes=bboxes,
+    scores=scores,
+    landmarks=landmarks,
+    vis_threshold=0.6,
+)
 
 # Save result
 cv2.imwrite("output.jpg", image)
@@ -156,7 +162,12 @@ while True:
     bboxes = [f['bbox'] for f in faces]
     scores = [f['confidence'] for f in faces]
     landmarks = [f['landmarks'] for f in faces]
-    draw_detections(frame, bboxes, scores, landmarks)
+    draw_detections(
+        image=frame,
+        bboxes=bboxes,
+        scores=scores,
+        landmarks=landmarks,
+    )
 
     # Show frame
     cv2.imshow("UniFace - Press 'q' to quit", frame)
@@ -365,7 +376,20 @@ from uniface import retinaface  # Module, not class
 
 ## Next Steps
 
-- **Detailed Examples**: Check the [examples/](examples/) folder for Jupyter notebooks
+### Jupyter Notebook Examples
+
+Explore interactive examples for common tasks:
+
+| Example | Description | Notebook |
+|---------|-------------|----------|
+| **Face Detection** | Detect faces and facial landmarks | [face_detection.ipynb](examples/face_detection.ipynb) |
+| **Face Alignment** | Align and crop faces for recognition | [face_alignment.ipynb](examples/face_alignment.ipynb) |
+| **Face Recognition** | Extract face embeddings and compare faces | [face_analyzer.ipynb](examples/face_analyzer.ipynb) |
+| **Face Verification** | Compare two faces to verify identity | [face_verification.ipynb](examples/face_verification.ipynb) |
+| **Face Search** | Find a person in a group photo | [face_search.ipynb](examples/face_search.ipynb) |
+
+### Additional Resources
+
 - **Model Benchmarks**: See [MODELS.md](MODELS.md) for performance comparisons
 - **Full Documentation**: Read [README.md](README.md) for complete API reference
 
@@ -374,7 +398,6 @@ from uniface import retinaface  # Module, not class
 ## References
 
 - **RetinaFace Training**: [yakhyo/retinaface-pytorch](https://github.com/yakhyo/retinaface-pytorch)
-- **YOLOv5-Face Original**: [deepcam-cn/yolov5-face](https://github.com/deepcam-cn/yolov5-face)
 - **YOLOv5-Face ONNX**: [yakhyo/yolov5-face-onnx-inference](https://github.com/yakhyo/yolov5-face-onnx-inference)
 - **Face Recognition Training**: [yakhyo/face-recognition](https://github.com/yakhyo/face-recognition)
 - **InsightFace**: [deepinsight/insightface](https://github.com/deepinsight/insightface)

README.md

@@ -17,7 +17,7 @@
 
 ## Features
 
-- **High-Speed Face Detection**: ONNX-optimized RetinaFace and SCRFD models
+- **High-Speed Face Detection**: ONNX-optimized RetinaFace, SCRFD, and YOLOv5-Face models
 - **Facial Landmark Detection**: Accurate 106-point landmark localization
 - **Face Recognition**: ArcFace, MobileFace, and SphereFace embeddings
 - **Attribute Analysis**: Age, gender, and emotion detection
@@ -218,9 +218,35 @@ recognizer = SphereFace()  # Angular softmax alternative
 from uniface import detect_faces
 
 # One-line face detection
-faces = detect_faces(image, method='retinaface', conf_thresh=0.8)
+faces = detect_faces(image, method='retinaface', conf_thresh=0.8)  # methods: retinaface, scrfd, yolov5face
 ```
 
+### Key Parameters (quick reference)
+
+**Detection**
+
+| Class          | Key params (defaults)                                                                                                                | Notes                                          |
+| -------------- | ------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------- |
+| `RetinaFace` | `model_name=RetinaFaceWeights.MNET_V2`, `conf_thresh=0.5`, `nms_thresh=0.4`, `input_size=(640, 640)`, `dynamic_size=False` | Supports 5-point landmarks                     |
+| `SCRFD`      | `model_name=SCRFDWeights.SCRFD_10G_KPS`, `conf_thresh=0.5`, `nms_thresh=0.4`, `input_size=(640, 640)`                        | Supports 5-point landmarks                     |
+| `YOLOv5Face` | `model_name=YOLOv5FaceWeights.YOLOV5S`, `conf_thresh=0.6`, `nms_thresh=0.5`, `input_size=640` (fixed)                        | Landmarks supported;`input_size` must be 640 |
+
+**Recognition**
+
+| Class          | Key params (defaults)                     | Notes                                 |
+| -------------- | ----------------------------------------- | ------------------------------------- |
+| `ArcFace`    | `model_name=ArcFaceWeights.MNET`        | Returns 512-dim normalized embeddings |
+| `MobileFace` | `model_name=MobileFaceWeights.MNET_V2`  | Lightweight embeddings                |
+| `SphereFace` | `model_name=SphereFaceWeights.SPHERE20` | Angular softmax variant               |
+
+**Landmark & Attributes**
+
+| Class           | Key params (defaults)                                                 | Notes                                   |
+| --------------- | --------------------------------------------------------------------- | --------------------------------------- |
+| `Landmark106` | No required params                                                    | 106-point landmarks                     |
+| `AgeGender`   | `model_name=AgeGenderWeights.DEFAULT`; `input_size` auto-detected | Requires bbox; ONNXRuntime              |
+| `Emotion`     | `model_weights=DDAMFNWeights.AFFECNET7`, `input_size=(112, 112)`  | Requires 5-point landmarks; TorchScript |
+
 ---
 
 ## Model Performance
@@ -255,6 +281,18 @@ See [MODELS.md](MODELS.md) for detailed model information and selection guide.
 
 ## Examples
 
+### Jupyter Notebooks
+
+Interactive examples covering common face analysis tasks:
+
+| Example | Description | Notebook |
+|---------|-------------|----------|
+| **Face Detection** | Detect faces and facial landmarks | [face_detection.ipynb](examples/face_detection.ipynb) |
+| **Face Alignment** | Align and crop faces for recognition | [face_alignment.ipynb](examples/face_alignment.ipynb) |
+| **Face Recognition** | Extract face embeddings and compare faces | [face_analyzer.ipynb](examples/face_analyzer.ipynb) |
+| **Face Verification** | Compare two faces to verify identity | [face_verification.ipynb](examples/face_verification.ipynb) |
+| **Face Search** | Find a person in a group photo | [face_search.ipynb](examples/face_search.ipynb) |
+
 ### Webcam Face Detection
 
 ```python
@@ -277,7 +315,13 @@ while True:
     scores = [f['confidence'] for f in faces]
     landmarks = [f['landmarks'] for f in faces]
 
-    draw_detections(frame, bboxes, scores, landmarks, vis_threshold=0.6)
+    draw_detections(
+        image=frame,
+        bboxes=bboxes,
+        scores=scores,
+        landmarks=landmarks,
+        vis_threshold=0.6,
+    )
 
     cv2.imshow("Face Detection", frame)
     if cv2.waitKey(1) & 0xFF == ord('q'):
@@ -452,7 +496,6 @@ uniface/
 ## References
 
 - **RetinaFace Training**: [yakhyo/retinaface-pytorch](https://github.com/yakhyo/retinaface-pytorch) - PyTorch implementation and training code
-- **YOLOv5-Face Original**: [deepcam-cn/yolov5-face](https://github.com/deepcam-cn/yolov5-face) - Original PyTorch implementation
 - **YOLOv5-Face ONNX**: [yakhyo/yolov5-face-onnx-inference](https://github.com/yakhyo/yolov5-face-onnx-inference) - ONNX inference implementation
 - **Face Recognition Training**: [yakhyo/face-recognition](https://github.com/yakhyo/face-recognition) - ArcFace, MobileFace, SphereFace training code
 - **InsightFace**: [deepinsight/insightface](https://github.com/deepinsight/insightface) - Model architectures and pretrained weights

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "uniface"
-version = "1.2.0"
+version = "1.3.0"
 description = "UniFace: A Comprehensive Library for Face Detection, Recognition, Landmark Analysis, Age, and Gender Detection"
 readme = "README.md"
 license = { text = "MIT" }

scripts/README.md

@@ -63,8 +63,8 @@ python scripts/download_model.py  # downloads all
 |--------|-------------|
 | `--image` | Path to input image |
 | `--webcam` | Use webcam instead of image |
-| `--detector` | Choose detector: `retinaface` or `scrfd` |
+| `--method` | Choose detector: `retinaface`, `scrfd`, `yolov5face` |
-| `--threshold` | Visualization confidence threshold (default: 0.6) |
+| `--threshold` | Visualization confidence threshold (default: 0.25) |
 | `--save_dir` | Output directory (default: `outputs`) |
 
 ## Quick Test

scripts/run_detection.py

@@ -51,7 +51,7 @@ def run_webcam(detector, threshold: float = 0.6):
         bboxes = [f['bbox'] for f in faces]
         scores = [f['confidence'] for f in faces]
         landmarks = [f['landmarks'] for f in faces]
-        draw_detections(frame, bboxes, scores, landmarks, vis_threshold=threshold)
+        draw_detections(frame, bboxes, scores, landmarks, vis_threshold=threshold, draw_score=True, fancy_bbox=True)
 
         cv2.putText(
             frame,
@@ -89,6 +89,7 @@ def main():
         detector = SCRFD()
     else:
         from uniface.constants import YOLOv5FaceWeights
+
         detector = YOLOv5Face(model_name=YOLOv5FaceWeights.YOLOV5M)
 
     if args.webcam:

uniface/__init__.py

@@ -13,7 +13,7 @@
 
 __license__ = 'MIT'
 __author__ = 'Yakhyokhuja Valikhujaev'
-__version__ = '1.2.0'
+__version__ = '1.3.0'
 
 
 from uniface.face_utils import compute_similarity, face_alignment

uniface/attribute/age_gender.py

@@ -2,7 +2,7 @@
 # Author: Yakhyokhuja Valikhujaev
 # GitHub: https://github.com/yakhyo
 
-from typing import List, Tuple, Union
+from typing import List, Optional, Tuple, Union
 
 import cv2
 import numpy as np
@@ -24,18 +24,30 @@ class AgeGender(Attribute):
     This class inherits from the base `Attribute` class and implements the
     functionality for predicting age (in years) and gender ID (0 for Female,
     1 for Male) from a face image. It requires a bounding box to locate the face.
+
+    Args:
+        model_name (AgeGenderWeights): The enum specifying the model weights to load.
+            Defaults to `AgeGenderWeights.DEFAULT`.
+        input_size (Optional[Tuple[int, int]]): Input size (height, width).
+            If None, automatically detected from model metadata. Defaults to None.
     """
 
-    def __init__(self, model_name: AgeGenderWeights = AgeGenderWeights.DEFAULT) -> None:
+    def __init__(
+        self,
+        model_name: AgeGenderWeights = AgeGenderWeights.DEFAULT,
+        input_size: Optional[Tuple[int, int]] = None,
+    ) -> None:
         """
         Initializes the AgeGender prediction model.
 
         Args:
-            model_name (AgeGenderWeights): The enum specifying the model weights
+            model_name (AgeGenderWeights): The enum specifying the model weights to load.
-                                           to load.
+            input_size (Optional[Tuple[int, int]]): Input size (height, width).
+                If None, automatically detected from model metadata. Defaults to None.
         """
         Logger.info(f'Initializing AgeGender with model={model_name.name}')
         self.model_path = verify_model_weights(model_name)
+        self._user_input_size = input_size  # Store user preference
         self._initialize_model()
 
     def _initialize_model(self) -> None:
@@ -47,7 +59,19 @@ class AgeGender(Attribute):
             # Get model input details from the loaded model
             input_meta = self.session.get_inputs()[0]
             self.input_name = input_meta.name
-            self.input_size = tuple(input_meta.shape[2:4])  # (height, width)
+
+            # Use user-provided size if given, otherwise auto-detect from model
+            model_input_size = tuple(input_meta.shape[2:4])  # (height, width)
+            if self._user_input_size is not None:
+                self.input_size = self._user_input_size
+                if self._user_input_size != model_input_size:
+                    Logger.warning(
+                        f'Using custom input_size {self.input_size}, '
+                        f'but model expects {model_input_size}. This may affect accuracy.'
+                    )
+            else:
+                self.input_size = model_input_size
+
             self.output_names = [output.name for output in self.session.get_outputs()]
             Logger.info(f'Successfully initialized AgeGender model with input size {self.input_size}')
         except Exception as e:

uniface/detection/__init__.py

@@ -22,7 +22,7 @@ def detect_faces(image: np.ndarray, method: str = 'retinaface', **kwargs) -> Lis
 
     Args:
         image (np.ndarray): Input image as numpy array.
-        method (str): Detection method to use. Options: 'retinaface', 'scrfd'.
+        method (str): Detection method to use. Options: 'retinaface', 'scrfd', 'yolov5face'.
         **kwargs: Additional arguments passed to the detector.
 
     Returns:

uniface/detection/retinaface.py

@@ -27,18 +27,19 @@ class RetinaFace(BaseDetector):
 
     Title: "RetinaFace: Single-stage Dense Face Localisation in the Wild"
     Paper: https://arxiv.org/abs/1905.00641
+    Code: https://github.com/yakhyo/retinaface-pytorch
 
     Args:
-        **kwargs: Keyword arguments passed to BaseDetector and RetinaFace. Supported keys include:
+        model_name (RetinaFaceWeights): Model weights to use. Defaults to `RetinaFaceWeights.MNET_V2`.
-            model_name (RetinaFaceWeights, optional): Model weights to use. Defaults to `RetinaFaceWeights.MNET_V2`.
+        conf_thresh (float): Confidence threshold for filtering detections. Defaults to 0.5.
-            conf_thresh (float, optional): Confidence threshold for filtering detections. Defaults to 0.5.
+        nms_thresh (float): Non-maximum suppression (NMS) IoU threshold. Defaults to 0.4.
-            nms_thresh (float, optional): Non-maximum suppression (NMS) IoU threshold. Defaults to 0.4.
+        input_size (Tuple[int, int]): Fixed input size (width, height) if `dynamic_size=False`.
-            pre_nms_topk (int, optional): Number of top-scoring boxes considered before NMS. Defaults to 5000.
+            Defaults to (640, 640).
-            post_nms_topk (int, optional): Max number of detections kept after NMS. Defaults to 750.
+            Note: Non-default sizes may cause slower inference and CoreML compatibility issues.
-            dynamic_size (bool, optional): If True, generate anchors dynamically per input image. Defaults to False.
+        **kwargs: Advanced options:
-            input_size (Tuple[int, int], optional): Fixed input size (width, height) if `dynamic_size=False`.
+            pre_nms_topk (int): Number of top-scoring boxes considered before NMS. Defaults to 5000.
-                Defaults to (640, 640).
+            post_nms_topk (int): Max number of detections kept after NMS. Defaults to 750.
-                Note: Non-default sizes may cause slower inference and CoreML compatibility issues.
+            dynamic_size (bool): If True, generate anchors dynamically per input image. Defaults to False.
 
     Attributes:
         model_name (RetinaFaceWeights): Selected model variant.
@@ -57,17 +58,33 @@ class RetinaFace(BaseDetector):
         RuntimeError: If the ONNX model fails to load or initialize.
     """
 
-    def __init__(self, **kwargs) -> None:
+    def __init__(
-        super().__init__(**kwargs)
+        self,
+        *,
+        model_name: RetinaFaceWeights = RetinaFaceWeights.MNET_V2,
+        conf_thresh: float = 0.5,
+        nms_thresh: float = 0.4,
+        input_size: Tuple[int, int] = (640, 640),
+        **kwargs: Any,
+    ) -> None:
+        super().__init__(
+            model_name=model_name,
+            conf_thresh=conf_thresh,
+            nms_thresh=nms_thresh,
+            input_size=input_size,
+            **kwargs,
+        )
         self._supports_landmarks = True  # RetinaFace supports landmarks
 
-        self.model_name = kwargs.get('model_name', RetinaFaceWeights.MNET_V2)
+        self.model_name = model_name
-        self.conf_thresh = kwargs.get('conf_thresh', 0.5)
+        self.conf_thresh = conf_thresh
-        self.nms_thresh = kwargs.get('nms_thresh', 0.4)
+        self.nms_thresh = nms_thresh
+        self.input_size = input_size
+
+        # Advanced options from kwargs
         self.pre_nms_topk = kwargs.get('pre_nms_topk', 5000)
         self.post_nms_topk = kwargs.get('post_nms_topk', 750)
         self.dynamic_size = kwargs.get('dynamic_size', False)
-        self.input_size = kwargs.get('input_size', (640, 640))
 
         Logger.info(
             f'Initializing RetinaFace with model={self.model_name}, conf_thresh={self.conf_thresh}, '
@@ -133,6 +150,7 @@ class RetinaFace(BaseDetector):
     def detect(
         self,
         image: np.ndarray,
+        *,
         max_num: int = 0,
         metric: Literal['default', 'max'] = 'max',
         center_weight: float = 2.0,

uniface/detection/scrfd.py

@@ -24,18 +24,20 @@ class SCRFD(BaseDetector):
 
     Title: "Sample and Computation Redistribution for Efficient Face Detection"
     Paper: https://arxiv.org/abs/2105.04714
+    Code: https://github.com/insightface/insightface
 
     Args:
-        **kwargs: Keyword arguments passed to BaseDetector and SCRFD. Supported keys include:
+        model_name (SCRFDWeights): Predefined model enum (e.g., `SCRFD_10G_KPS`).
-            model_name (SCRFDWeights, optional): Predefined model enum (e.g., `SCRFD_10G_KPS`).
+            Specifies the SCRFD variant to load. Defaults to SCRFD_10G_KPS.
-                Specifies the SCRFD variant to load. Defaults to SCRFD_10G_KPS.
+        conf_thresh (float): Confidence threshold for filtering detections. Defaults to 0.5.
-            conf_thresh (float, optional): Confidence threshold for filtering detections. Defaults to 0.5.
+        nms_thresh (float): Non-Maximum Suppression threshold. Defaults to 0.4.
-            nms_thresh (float, optional): Non-Maximum Suppression threshold. Defaults to 0.4.
+        input_size (Tuple[int, int]): Input image size (width, height).
-            input_size (Tuple[int, int], optional): Input image size (width, height).
+            Defaults to (640, 640).
-                Defaults to (640, 640).
+            Note: Non-default sizes may cause slower inference and CoreML compatibility issues.
-                Note: Non-default sizes may cause slower inference and CoreML compatibility issues.
+        **kwargs: Reserved for future advanced options.
 
     Attributes:
+        model_name (SCRFDWeights): Selected model variant.
         conf_thresh (float): Threshold used to filter low-confidence detections.
         nms_thresh (float): Threshold used during NMS to suppress overlapping boxes.
         input_size (Tuple[int, int]): Image size to which inputs are resized before inference.
@@ -50,15 +52,25 @@ class SCRFD(BaseDetector):
         RuntimeError: If the ONNX model fails to load or initialize.
     """
 
-    def __init__(self, **kwargs) -> None:
+    def __init__(
-        super().__init__(**kwargs)
+        self,
+        *,
+        model_name: SCRFDWeights = SCRFDWeights.SCRFD_10G_KPS,
+        conf_thresh: float = 0.5,
+        nms_thresh: float = 0.4,
+        input_size: Tuple[int, int] = (640, 640),
+        **kwargs: Any,
+    ) -> None:
+        super().__init__(
+            model_name=model_name,
+            conf_thresh=conf_thresh,
+            nms_thresh=nms_thresh,
+            input_size=input_size,
+            **kwargs,
+        )
         self._supports_landmarks = True  # SCRFD supports landmarks
 
-        model_name = kwargs.get('model_name', SCRFDWeights.SCRFD_10G_KPS)
+        self.model_name = model_name
-        conf_thresh = kwargs.get('conf_thresh', 0.5)
-        nms_thresh = kwargs.get('nms_thresh', 0.4)
-        input_size = kwargs.get('input_size', (640, 640))
-
         self.conf_thresh = conf_thresh
         self.nms_thresh = nms_thresh
         self.input_size = input_size
@@ -71,12 +83,12 @@ class SCRFD(BaseDetector):
         # ---------------------------------
 
         Logger.info(
-            f'Initializing SCRFD with model={model_name}, conf_thresh={conf_thresh}, nms_thresh={nms_thresh}, '
+            f'Initializing SCRFD with model={self.model_name}, conf_thresh={self.conf_thresh}, '
-            f'input_size={input_size}'
+            f'nms_thresh={self.nms_thresh}, input_size={self.input_size}'
         )
 
         # Get path to model weights
-        self._model_path = verify_model_weights(model_name)
+        self._model_path = verify_model_weights(self.model_name)
         Logger.info(f'Verified model weights located at: {self._model_path}')
 
         # Initialize model
@@ -177,9 +189,10 @@ class SCRFD(BaseDetector):
     def detect(
         self,
         image: np.ndarray,
+        *,
         max_num: int = 0,
         metric: Literal['default', 'max'] = 'max',
-        center_weight: float = 2,
+        center_weight: float = 2.0,
     ) -> List[Dict[str, Any]]:
         """
         Perform face detection on an input image and return bounding boxes and facial landmarks.

uniface/detection/yolov5.py

@@ -22,20 +22,22 @@ class YOLOv5Face(BaseDetector):
     """
     Face detector based on the YOLOv5-Face architecture.
 
+    Title: "YOLO5Face: Why Reinventing a Face Detector"
     Paper: https://arxiv.org/abs/2105.12931
-    Original Implementation: https://github.com/deepcam-cn/yolov5-face
+    Code: https://github.com/yakhyo/yolov5-face-onnx-inference (ONNX inference implementation)
 
     Args:
-        **kwargs: Keyword arguments passed to BaseDetector and YOLOv5Face. Supported keys include:
+        model_name (YOLOv5FaceWeights): Predefined model enum (e.g., `YOLOV5S`).
-            model_name (YOLOv5FaceWeights, optional): Predefined model enum (e.g., `YOLOV5S`).
+            Specifies the YOLOv5-Face variant to load. Defaults to YOLOV5S.
-                Specifies the YOLOv5-Face variant to load. Defaults to YOLOV5S.
+        conf_thresh (float): Confidence threshold for filtering detections. Defaults to 0.6.
-            conf_thresh (float, optional): Confidence threshold for filtering detections. Defaults to 0.25.
+        nms_thresh (float): Non-Maximum Suppression threshold. Defaults to 0.5.
-            nms_thresh (float, optional): Non-Maximum Suppression threshold. Defaults to 0.45.
+        input_size (int): Input image size. Defaults to 640.
-            input_size (int, optional): Input image size. Defaults to 640.
+            Note: ONNX model is fixed at 640. Changing this will cause inference errors.
-                Note: ONNX model is fixed at 640. Changing this will cause inference errors.
+        **kwargs: Advanced options:
-            max_det (int, optional): Maximum number of detections to return. Defaults to 750.
+            max_det (int): Maximum number of detections to return. Defaults to 750.
 
     Attributes:
+        model_name (YOLOv5FaceWeights): Selected model variant.
         conf_thresh (float): Threshold used to filter low-confidence detections.
         nms_thresh (float): Threshold used during NMS to suppress overlapping boxes.
         input_size (int): Image size to which inputs are resized before inference.
@@ -47,34 +49,45 @@ class YOLOv5Face(BaseDetector):
         RuntimeError: If the ONNX model fails to load or initialize.
     """
 
-    def __init__(self, **kwargs) -> None:
+    def __init__(
-        super().__init__(**kwargs)
+        self,
+        *,
+        model_name: YOLOv5FaceWeights = YOLOv5FaceWeights.YOLOV5S,
+        conf_thresh: float = 0.6,
+        nms_thresh: float = 0.5,
+        input_size: int = 640,
+        **kwargs: Any,
+    ) -> None:
+        super().__init__(
+            model_name=model_name,
+            conf_thresh=conf_thresh,
+            nms_thresh=nms_thresh,
+            input_size=input_size,
+            **kwargs,
+        )
         self._supports_landmarks = True  # YOLOv5-Face supports landmarks
 
-        model_name = kwargs.get('model_name', YOLOv5FaceWeights.YOLOV5S)
-        conf_thresh = kwargs.get('conf_thresh', 0.6)  # 0.6 is default from original YOLOv5-Face repository
-        nms_thresh = kwargs.get('nms_thresh', 0.5)  # 0.5 is default from original YOLOv5-Face repository
-        input_size = kwargs.get('input_size', 640)
-        max_det = kwargs.get('max_det', 750)
-
         # Validate input size
         if input_size != 640:
             raise ValueError(
                 f'YOLOv5Face only supports input_size=640 (got {input_size}). The ONNX model has a fixed input shape.'
             )
 
+        self.model_name = model_name
         self.conf_thresh = conf_thresh
         self.nms_thresh = nms_thresh
         self.input_size = input_size
-        self.max_det = max_det
+
+        # Advanced options from kwargs
+        self.max_det = kwargs.get('max_det', 750)
 
         Logger.info(
-            f'Initializing YOLOv5Face with model={model_name}, conf_thresh={conf_thresh}, '
+            f'Initializing YOLOv5Face with model={self.model_name}, conf_thresh={self.conf_thresh}, '
-            f'nms_thresh={nms_thresh}, input_size={input_size}'
+            f'nms_thresh={self.nms_thresh}, input_size={self.input_size}'
         )
 
         # Get path to model weights
-        self._model_path = verify_model_weights(model_name)
+        self._model_path = verify_model_weights(self.model_name)
         Logger.info(f'Verified model weights located at: {self._model_path}')
 
         # Initialize model
@@ -242,6 +255,7 @@ class YOLOv5Face(BaseDetector):
     def detect(
         self,
         image: np.ndarray,
+        *,
         max_num: int = 0,
         metric: Literal['default', 'max'] = 'max',
         center_weight: float = 2.0,

uniface/visualization.py

@@ -2,59 +2,127 @@
 # Author: Yakhyokhuja Valikhujaev
 # GitHub: https://github.com/yakhyo
 
-from typing import List, Union
+from typing import List, Tuple, Union
 
 import cv2
 import numpy as np
 
 
 def draw_detections(
+    *,
     image: np.ndarray,
     bboxes: Union[List[np.ndarray], List[List[float]]],
     scores: Union[np.ndarray, List[float]],
     landmarks: Union[List[np.ndarray], List[List[List[float]]]],
     vis_threshold: float = 0.6,
+    draw_score: bool = False,
+    fancy_bbox: bool = True,
 ):
     """
-    Draws bounding boxes, scores, and landmarks from separate lists onto an image.
+    Draws bounding boxes, landmarks, and optional scores on an image.
 
     Args:
-        image (np.ndarray): The image to draw on.
+        image: Input image to draw on.
-        bboxes (List[np.ndarray] or List[List[float]]): List of bounding boxes. Each bbox can be
+        bboxes: List of bounding boxes [x1, y1, x2, y2].
-            np.ndarray with shape (4,) or list [x1, y1, x2, y2].
+        scores: List of confidence scores.
-        scores (List[float] or np.ndarray): List or array of confidence scores.
+        landmarks: List of landmark sets with shape (5, 2).
-        landmarks (List[np.ndarray] or List[List[List[float]]]): List of landmark sets. Each landmark
+        vis_threshold: Confidence threshold for filtering. Defaults to 0.6.
-            set can be np.ndarray with shape (5, 2) or nested list [[[x,y],...],...].
+        draw_score: Whether to draw confidence scores. Defaults to False.
-        vis_threshold (float): Confidence threshold for filtering which detections to draw.
     """
-    _colors = [(0, 0, 255), (0, 255, 255), (255, 0, 255), (0, 255, 0), (255, 0, 0)]
+    colors = [(0, 0, 255), (0, 255, 255), (255, 0, 255), (0, 255, 0), (255, 0, 0)]
 
-    # Filter detections by score
+    # Calculate line thickness based on image size
+    line_thickness = max(round(sum(image.shape[:2]) / 2 * 0.003), 2)
+
+    # Filter detections by confidence threshold
     keep_indices = [i for i, score in enumerate(scores) if score >= vis_threshold]
 
-    # Draw the filtered detections
     for i in keep_indices:
         bbox = np.array(bboxes[i], dtype=np.int32)
         score = scores[i]
         landmark_set = np.array(landmarks[i], dtype=np.int32)
 
-        # Calculate adaptive thickness
+        # Calculate dynamic font scale based on bbox height
-        thickness = max(1, int(min(bbox[2] - bbox[0], bbox[3] - bbox[1]) / 100))
+        bbox_h = bbox[3] - bbox[1]
+        font_scale = max(0.4, min(0.7, bbox_h / 200))
+        font_thickness = 2
 
         # Draw bounding box
-        cv2.rectangle(image, tuple(bbox[:2]), tuple(bbox[2:]), (0, 0, 255), thickness)
+        if fancy_bbox:
+            draw_fancy_bbox(image, bbox, color=(0, 255, 0), thickness=line_thickness, proportion=0.2)
+        else:
+            cv2.rectangle(image, tuple(bbox[:2]), tuple(bbox[2:]), (0, 255, 0), line_thickness)
 
-        # Draw score
+        # Draw confidence score with background
-        cv2.putText(
+        if draw_score:
-            image,
+            text = f'{score:.2f}'
-            f'{score:.2f}',
+            (text_width, text_height), baseline = cv2.getTextSize(
-            (bbox[0], bbox[1] - 10),
+                text, cv2.FONT_HERSHEY_SIMPLEX, font_scale, font_thickness
-            cv2.FONT_HERSHEY_SIMPLEX,
+            )
-            0.5,
+
-            (255, 255, 255),
+            # Draw background rectangle
-            thickness,
+            cv2.rectangle(
-        )
+                image,
+                (bbox[0], bbox[1] - text_height - baseline - 10),
+                (bbox[0] + text_width + 10, bbox[1]),
+                (0, 255, 0),
+                -1,
+            )
+
+            # Draw text
+            cv2.putText(
+                image,
+                text,
+                (bbox[0] + 5, bbox[1] - 5),
+                cv2.FONT_HERSHEY_SIMPLEX,
+                font_scale,
+                (0, 0, 0),
+                font_thickness,
+            )
 
         # Draw landmarks
         for j, point in enumerate(landmark_set):
-            cv2.circle(image, tuple(point), thickness + 1, _colors[j], -1)
+            cv2.circle(image, tuple(point), line_thickness + 1, colors[j], -1)
+
+
+def draw_fancy_bbox(
+    image: np.ndarray,
+    bbox: np.ndarray,
+    color: Tuple[int, int, int] = (0, 255, 0),
+    thickness: int = 3,
+    proportion: float = 0.2,
+):
+    """
+    Draws a bounding box with fancy corners on an image.
+
+    Args:
+        image: Input image to draw on.
+        bbox: Bounding box coordinates [x1, y1, x2, y2].
+        color: Color of the bounding box. Defaults to green.
+        thickness: Thickness of the bounding box lines. Defaults to 3.
+        proportion: Proportion of the corner length to the width/height of the bounding box. Defaults to 0.2.
+    """
+    x1, y1, x2, y2 = map(int, bbox)
+    width = x2 - x1
+    height = y2 - y1
+
+    corner_length = int(proportion * min(width, height))
+
+    # Draw the rectangle
+    cv2.rectangle(image, (x1, y1), (x2, y2), color, 1)
+
+    # Top-left corner
+    cv2.line(image, (x1, y1), (x1 + corner_length, y1), color, thickness)
+    cv2.line(image, (x1, y1), (x1, y1 + corner_length), color, thickness)
+
+    # Top-right corner
+    cv2.line(image, (x2, y1), (x2 - corner_length, y1), color, thickness)
+    cv2.line(image, (x2, y1), (x2, y1 + corner_length), color, thickness)
+
+    # Bottom-left corner
+    cv2.line(image, (x1, y2), (x1, y2 - corner_length), color, thickness)
+    cv2.line(image, (x1, y2), (x1 + corner_length, y2), color, thickness)
+
+    # Bottom-right corner
+    cv2.line(image, (x2, y2), (x2, y2 - corner_length), color, thickness)
+    cv2.line(image, (x2, y2), (x2 - corner_length, y2), color, thickness)