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Browse files- app.py +48 -0
- requirements.txt +4 -0
app.py
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import gradio as gr
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from PIL import Image
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from transformers import BlipProcessor, BlipForConditionalGeneration
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import torch
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import base64
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from io import BytesIO
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# Modell vorbereiten
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device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
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processor = BlipProcessor.from_pretrained("Salesforce/blip-image-captioning-base")
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model = BlipForConditionalGeneration.from_pretrained("Salesforce/blip-image-captioning-base").to(device)
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# Hilfsfunktion: Bild in base64 für HTML-Thumbnail umwandeln
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def image_to_base64_html(img):
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buffered = BytesIO()
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img.save(buffered, format="PNG")
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img_str = base64.b64encode(buffered.getvalue()).decode()
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html = f'<img src="data:image/png;base64,{img_str}" width="150"/>'
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return html
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# Hauptfunktion: Bild → Beschreibung → beides in Chat
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def describe_image_with_thumbnail(image, history):
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if image is None:
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return history
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# Beschreibung generieren
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inputs = processor(images=image, return_tensors="pt").to(device)
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output = model.generate(**inputs)
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caption = processor.decode(output[0], skip_special_tokens=True)
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# Bild in HTML konvertieren
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image_html = image_to_base64_html(image)
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# Chatverlauf aktualisieren (Bild + Beschreibung)
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history.append((image_html, caption))
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return history
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# UI bauen
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with gr.Blocks() as demo:
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gr.Markdown("## 🤖 Bildbeschreibung-Chatbot mit Thumbnail-Vorschau")
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chatbot = gr.Chatbot(label="Bilder-Chat")
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with gr.Row():
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image_input = gr.Image(type="pil", label="Bild hier hochladen")
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send_btn = gr.Button("Bild analysieren")
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send_btn.click(fn=describe_image_with_thumbnail, inputs=[image_input, chatbot], outputs=chatbot)
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demo.launch()
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requirements.txt
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transformers
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torch
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gradio
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Pillow
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