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from transformers import AutoFeatureExtractor, YolosForObjectDetection |
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import gradio as gr |
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from PIL import Image |
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import torch |
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import matplotlib.pyplot as plt |
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import io |
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import numpy as np |
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import os |
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os.system("pip -qq install yoloxdetect==0.0.7") |
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from yoloxdetect import YoloxDetector |
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torch.hub.download_url_to_file('https://tochkanews.ru/wp-content/uploads/2020/09/0.jpg', '1.jpg') |
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torch.hub.download_url_to_file('https://s.rdrom.ru/1/pubs/4/35893/1906770.jpg', '2.jpg') |
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torch.hub.download_url_to_file('https://static.mk.ru/upload/entities/2022/04/17/07/articles/detailPicture/5b/39/28/b6/ffb1aa636dd62c30e6ff670f84474f75.jpg', '3.jpg') |
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COLORS = [[0.000, 0.447, 0.741], [0.850, 0.325, 0.098], [0.929, 0.694, 0.125], |
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[0.494, 0.184, 0.556], [0.466, 0.674, 0.188], [0.301, 0.745, 0.933]] |
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def get_class_list_from_input(classes_string: str): |
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if classes_string == "": |
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return [] |
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classes_list = classes_string.split(",") |
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classes_list = [x.strip() for x in classes_list] |
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return classes_list |
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def plot_results(pil_img, prob, boxes, model, classes_list): |
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plt.figure(figsize=(16,10)) |
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plt.imshow(pil_img) |
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ax = plt.gca() |
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colors = COLORS * 100 |
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for p, (xmin, ymin, xmax, ymax), c in zip(prob, boxes.tolist(), colors): |
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cl = p.argmax() |
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object_class = model.config.id2label[cl.item()] |
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if len(classes_list) > 0 : |
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if object_class not in classes_list: |
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continue |
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ax.add_patch(plt.Rectangle((xmin, ymin), xmax - xmin, ymax - ymin, |
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fill=False, color=c, linewidth=3)) |
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text = f'{object_class}: {p[cl]:0.2f}' |
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ax.text(xmin, ymin, text, fontsize=15, |
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bbox=dict(facecolor='yellow', alpha=0.5)) |
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plt.axis('off') |
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return fig2img(plt.gcf()) |
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def fig2img(fig): |
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buf = io.BytesIO() |
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fig.savefig(buf) |
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buf.seek(0) |
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img = Image.open(buf) |
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return img |
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def inference( |
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image_path: gr.inputs.Image = None, |
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model_path: gr.inputs.Dropdown = 'kadirnar/yolox_s-v0.1.1', |
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image_size: gr.inputs.Slider = 640, |
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prob_threshold = 0.8, |
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"", |
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): |
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if model_name in ("yolox_s-v0.1.1", "yolox_m-v0.1.1", "yolox_tiny-v0.1.1"): |
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model = YoloxDetector(f"kadirnar/{model_name}", device="cpu", hf_model=True) |
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pred = model.predict(image_path=image_path, image_size=image_size) |
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return pred |
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else: |
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feature_extractor = AutoFeatureExtractor.from_pretrained(f"hustvl/{model_name}") |
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model = YolosForObjectDetection.from_pretrained(f"hustvl/{model_name}") |
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img = Image.fromarray(img) |
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pixel_values = feature_extractor(img, return_tensors="pt").pixel_values |
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with torch.no_grad(): |
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outputs = model(pixel_values, output_attentions=True) |
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probas = outputs.logits.softmax(-1)[0, :, :-1] |
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keep = probas.max(-1).values > prob_threshold |
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target_sizes = torch.tensor(img.size[::-1]).unsqueeze(0) |
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postprocessed_outputs = feature_extractor.post_process(outputs, target_sizes) |
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bboxes_scaled = postprocessed_outputs[0]['boxes'] |
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classes_list = get_class_list_from_input(classes_to_show) |
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res_img = plot_results(img, probas[keep], bboxes_scaled[keep], model, classes_list) |
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return res_img |
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classes_to_show = gr.components.Textbox(placeholder="e.g. person, boat", label="Classes to use (empty means all classes)") |
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inputs = [ |
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gr.inputs.Image(type="filepath", label="Input Image"), |
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gr.inputs.Dropdown( |
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label="Model Path", |
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choices=[ |
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"yolox_s-v0.1.1", |
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"yolox_m-v0.1.1", |
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"yolox_tiny-v0.1.1", |
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"yolos-tiny", |
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"yolos-small", |
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"yolos-base", |
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"yolos-small-300", |
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"yolos-small-dwr" |
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], |
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default="kadirnar/yolox_s-v0.1.1", |
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), |
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gr.inputs.Slider(minimum=0, maximum=1.0, step=0.01, default=0.9, label="Probability Threshold"), |
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gr.inputs.Slider(minimum=320, maximum=1280, default=640, step=32, label="Image Size"), |
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classes_to_show, |
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] |
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outputs = gr.outputs.Image(type="filepath", label="Output Image") |
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examples = [ |
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["1.jpg", "kadirnar/yolox_m-v0.1.1", 0.8, 640, ""], |
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["2.jpg", "kadirnar/yolox_s-v0.1.1", 0.8, 640, ""], |
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["3.jpg", "kadirnar/yolox_tiny-v0.1.1", 0.8, 640, ""], |
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] |
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demo_app = gr.Interface( |
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fn=inference, |
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inputs=inputs, |
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outputs=outputs, |
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title="Object Detection with YOLO", |
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examples=examples, |
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cache_examples=True, |
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theme='huggingface', |
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) |
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demo_app.launch(debug=True, enable_queue=True) |
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