dev(narugo): add quick gradio demo for classifiers/yolos

docs/source/api_doc/generic/classify.rst

@@ -11,7 +11,7 @@ ClassifyModel
 -----------------------------------------
 
 .. autoclass:: ClassifyModel
-    :members: __init__, predict_score, predict, clear
+    :members: __init__, predict_score, predict, clear, make_ui, launch_demo
 
 
 

docs/source/api_doc/generic/yolo.rst

@@ -11,7 +11,7 @@ YOLOModel
 -----------------------------------------
 
 .. autoclass:: YOLOModel
-    :members: __init__, predict, clear
+    :members: __init__, predict, clear, make_ui, launch_demo
 
 
 

imgutils/generic/classify.py

@@ -23,19 +23,37 @@
 
 import numpy as np
 from PIL import Image
+from hfutils.operate import get_hf_client
+from hfutils.repository import hf_hub_repo_url
 from hfutils.utils import hf_fs_path, hf_normpath
 from huggingface_hub import hf_hub_download, HfFileSystem
 
 from ..data import rgb_encode, ImageTyping, load_image
 from ..utils import open_onnx_model
 
+try:
+    import gradio as gr
+except (ImportError, ModuleNotFoundError):
+    gr = None
+
 __all__ = [
     'ClassifyModel',
     'classify_predict_score',
     'classify_predict',
 ]
 
 
+def _check_gradio_env():
+    """
+    Check if the Gradio library is installed and available.
+
+    :raises EnvironmentError: If Gradio is not installed.
+    """
+    if gr is None:
+        raise EnvironmentError(f'Gradio required for launching webui-based demo.\n'
+                               f'Please install it with `pip install dghs-imgutils[demo]`.')
+
+
 def _img_encode(image: Image.Image, size: Tuple[int, int] = (384, 384),
                 normalize: Optional[Tuple[float, float]] = (0.5, 0.5)):
     """
@@ -287,6 +305,100 @@
         self._models.clear()
         self._labels.clear()
 
+    def make_ui(self, default_model_name: Optional[str] = None):
+        """
+        Create the user interface components for the classifier model demo.
+
+        This method sets up the Gradio UI components including an image input, model selection dropdown,
+        submit button, and output label. It also configures the interaction between these components.
+
+        :param default_model_name: The name of the default model to be selected in the dropdown.
+                                   If None, the most recently updated model will be selected.
+        :type default_model_name: Optional[str]
+
+        :raises ImportError: If Gradio is not installed or properly configured.
+
+        :Example:
+        >>> model = ClassifyModel("username/repo_name")
+        >>> model.make_ui(default_model_name="model_v1")
+        """
+
+        # demo for classifier model
+        _check_gradio_env()
+        model_list = self.model_names
+        if not default_model_name:
+            hf_client = get_hf_client(hf_token=self._get_hf_token())
+            selected_model_name, selected_time = None, None
+            for fileitem in hf_client.get_paths_info(
+                    repo_id=self.repo_id,
+                    repo_type='model',
+                    paths=[f'{model_name}/model.onnx' for model_name in model_list],
+                    expand=True,
+            ):
+                if not selected_time or fileitem.last_commit.date > selected_time:
+                    selected_model_name = os.path.dirname(fileitem.path)
+                    selected_time = fileitem.last_commit.date
+            default_model_name = selected_model_name
+
+        with gr.Row():
+            with gr.Column():
+                gr_input_image = gr.Image(type='pil', label='Original Image')
+                gr_model = gr.Dropdown(model_list, value=default_model_name, label='Model')
+                gr_submit = gr.Button(value='Submit', variant='primary')
+
+            with gr.Column():
+                gr_output = gr.Label(label='Prediction')
+
+            gr_submit.click(
+                self.predict_score,
+                inputs=[
+                    gr_input_image,
+                    gr_model,
+                ],
+                outputs=[gr_output],
+            )
+
+    def launch_demo(self, default_model_name: Optional[str] = None,
+                    server_name: Optional[str] = None, server_port: Optional[int] = None, **kwargs):
+        """
+        Launch the Gradio demo for the classifier model.
+
+        This method creates a Gradio Blocks interface, sets up the UI components using make_ui(),
+        and launches the demo server.
+
+        :param default_model_name: The name of the default model to be selected in the dropdown.
+        :type default_model_name: Optional[str]
+        :param server_name: The name of the server to run the demo on. Defaults to None.
+        :type server_name: Optional[str]
+        :param server_port: The port number to run the demo on. Defaults to None.
+        :type server_port: Optional[int]
+        :param kwargs: Additional keyword arguments to pass to the Gradio launch method.
+
+        :raises ImportError: If Gradio is not installed or properly configured.
+
+        :Example:
+        >>> model = ClassifyModel("username/repo_name")
+        >>> model.launch_demo(default_model_name="model_v1", server_name="0.0.0.0", server_port=7860)
+        """
+
+        _check_gradio_env()
+        with gr.Blocks() as demo:
+            with gr.Row():
+                with gr.Column():
+                    repo_url = hf_hub_repo_url(repo_id=self.repo_id, repo_type='model')
+                    gr.HTML(f'<h2 style="text-align: center;">Classifier Demo For {self.repo_id}</h2>')
+                    gr.Markdown(f'This is the quick demo for classifier model [{self.repo_id}]({repo_url}). '
+                                f'Powered by `dghs-imgutils`\'s quick demo module.')
+
+            with gr.Row():
+                self.make_ui(default_model_name=default_model_name)
+
+        demo.launch(
+            server_name=server_name,
+            server_port=server_port,
+            **kwargs,
+        )
+
 
 @lru_cache()
 def _open_models_for_repo_id(repo_id: str, hf_token: Optional[str] = None) -> ClassifyModel:

imgutils/generic/yolo.py

@@ -20,18 +20,61 @@
 
 import numpy as np
 from PIL import Image
+from hbutils.color import rnd_colors
+from hfutils.operate import get_hf_client
+from hfutils.repository import hf_hub_repo_url
 from hfutils.utils import hf_fs_path, hf_normpath
 from huggingface_hub import HfFileSystem, hf_hub_download
 
 from ..data import load_image, rgb_encode, ImageTyping
 from ..utils import open_onnx_model
 
+try:
+    import gradio as gr
+except (ImportError, ModuleNotFoundError):
+    gr = None
+
 __all__ = [
     'YOLOModel',
     'yolo_predict',
 ]
 
 
+def _check_gradio_env():
+    """
+    Check if the Gradio library is installed and available.
+
+    :raises EnvironmentError: If Gradio is not installed.
+    """
+    if gr is None:
+        raise EnvironmentError(f'Gradio required for launching webui-based demo.\n'
+                               f'Please install it with `pip install dghs-imgutils[demo]`.')
+
+
+def _v_fix(v):
+    """
+    Round and convert a float value to an integer.
+
+    :param v: The float value to be rounded and converted.
+    :type v: float
+    :return: The rounded integer value.
+    :rtype: int
+    """
+    return int(round(v))
+
+
+def _bbox_fix(bbox):
+    """
+    Fix the bounding box coordinates by rounding them to integers.
+
+    :param bbox: The bounding box coordinates.
+    :type bbox: tuple
+    :return: A tuple of fixed (rounded to integer) bounding box coordinates.
+    :rtype: tuple
+    """
+    return tuple(map(_v_fix, bbox))
+
+
 def _yolo_xywh2xyxy(x: np.ndarray) -> np.ndarray:
     """
     Convert bounding box coordinates from (x, y, width, height) format to (x1, y1, x2, y2) format.
@@ -403,9 +446,146 @@
     def clear(self):
         """
         Clear cached model and metadata.
+
+        This method removes all cached models and their associated metadata from memory.
+        It's useful for freeing up memory or ensuring that the latest versions of models are loaded.
         """
         self._models.clear()
 
+    def make_ui(self, default_model_name: Optional[str] = None,
+                default_conf_threshold: float = 0.25, default_iou_threshold: float = 0.7):
+        """
+        Create a Gradio-based user interface for object detection.
+
+        This method sets up an interactive UI that allows users to upload images,
+        select models, and adjust detection parameters. It uses the Gradio library
+        to create the interface.
+
+        :param default_model_name: The name of the default model to use.
+                                   If None, the most recently updated model is selected.
+        :type default_model_name: Optional[str]
+        :param default_conf_threshold: Default confidence threshold for the UI. Default is 0.25.
+        :type default_conf_threshold: float
+        :param default_iou_threshold: Default IoU threshold for the UI. Default is 0.7.
+        :type default_iou_threshold: float
+
+        :raises ImportError: If Gradio is not installed in the environment.
+
+        :Example:
+
+        >>> model = YOLOModel("username/repo_name")
+        >>> model.make_ui(default_model_name="yolov5s")
+        """
+        _check_gradio_env()
+        model_list = self.model_names
+        if not default_model_name:
+            hf_client = get_hf_client(hf_token=self._get_hf_token())
+            selected_model_name, selected_time = None, None
+            for fileitem in hf_client.get_paths_info(
+                    repo_id=self.repo_id,
+                    repo_type='model',
+                    paths=[f'{model_name}/model.onnx' for model_name in model_list],
+                    expand=True,
+            ):
+                if not selected_time or fileitem.last_commit.date > selected_time:
+                    selected_model_name = os.path.dirname(fileitem.path)
+                    selected_time = fileitem.last_commit.date
+            default_model_name = selected_model_name
+
+        def _gr_detect(image: ImageTyping, model_name: str,
+                       iou_threshold: float = 0.7, score_threshold: float = 0.25) \
+                -> gr.AnnotatedImage:
+            _, _, labels = self._open_model(model_name=model_name)
+            _colors = list(map(str, rnd_colors(len(labels))))
+            _color_map = dict(zip(labels, _colors))
+            return gr.AnnotatedImage(
+                value=(image, [
+                    (_bbox_fix(bbox), label)
+                    for bbox, label, _ in self.predict(
+                        image=image,
+                        model_name=model_name,
+                        iou_threshold=iou_threshold,
+                        conf_threshold=score_threshold,
+                    )
+                ]),
+                color_map=_color_map,
+                label='Labeled',
+            )
+
+        with gr.Row():
+            with gr.Column():
+                gr_input_image = gr.Image(type='pil', label='Original Image')
+                gr_model = gr.Dropdown(model_list, value=default_model_name, label='Model')
+                with gr.Row():
+                    gr_iou_threshold = gr.Slider(0.0, 1.0, default_iou_threshold, label='IOU Threshold')
+                    gr_score_threshold = gr.Slider(0.0, 1.0, default_conf_threshold, label='Score Threshold')
+
+                gr_submit = gr.Button(value='Submit', variant='primary')
+
+            with gr.Column():
+                gr_output_image = gr.AnnotatedImage(label="Labeled")
+
+            gr_submit.click(
+                _gr_detect,
+                inputs=[
+                    gr_input_image,
+                    gr_model,
+                    gr_iou_threshold,
+                    gr_score_threshold,
+                ],
+                outputs=[gr_output_image],
+            )
+
+    def launch_demo(self, default_model_name: Optional[str] = None,
+                    default_conf_threshold: float = 0.25, default_iou_threshold: float = 0.7,
+                    server_name: Optional[str] = None, server_port: Optional[int] = None, **kwargs):
+        """
+        Launch a Gradio demo for object detection.
+
+        This method creates and launches a Gradio demo that allows users to interactively
+        perform object detection on uploaded images using the YOLO model.
+
+        :param default_model_name: The name of the default model to use.
+                                   If None, the most recently updated model is selected.
+        :type default_model_name: Optional[str]
+        :param default_conf_threshold: Default confidence threshold for the demo. Default is 0.25.
+        :type default_conf_threshold: float
+        :param default_iou_threshold: Default IoU threshold for the demo. Default is 0.7.
+        :type default_iou_threshold: float
+        :param server_name: The name of the server to run the demo on. Default is None.
+        :type server_name: Optional[str]
+        :param server_port: The port to run the demo on. Default is None.
+        :type server_port: Optional[int]
+        :param kwargs: Additional keyword arguments to pass to gr.Blocks.launch().
+
+        :raises EnvironmentError: If Gradio is not installed in the environment.
+
+        Example:
+            >>> model = YOLOModel("username/repo_name")
+            >>> model.launch_demo(default_model_name="yolov5s", server_name="0.0.0.0", server_port=7860)
+        """
+        _check_gradio_env()
+        with gr.Blocks() as demo:
+            with gr.Row():
+                with gr.Column():
+                    repo_url = hf_hub_repo_url(repo_id=self.repo_id, repo_type='model')
+                    gr.HTML(f'<h2 style="text-align: center;">YOLO Demo For {self.repo_id}</h2>')
+                    gr.Markdown(f'This is the quick demo for YOLO model [{self.repo_id}]({repo_url}). '
+                                f'Powered by `dghs-imgutils`\'s quick demo module.')
+
+            with gr.Row():
+                self.make_ui(
+                    default_model_name=default_model_name,
+                    default_conf_threshold=default_conf_threshold,
+                    default_iou_threshold=default_iou_threshold,
+                )
+
+        demo.launch(
+            server_name=server_name,
+            server_port=server_port,
+            **kwargs,
+        )
+
 
 @lru_cache()
 def _open_models_for_repo_id(repo_id: str, hf_token: Optional[str] = None) -> YOLOModel:

requirements-demo.txt

@@ -0,0 +1 @@
+gradio>=4.44.0