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Update app.py
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app.py
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import os
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import
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from PIL import Image
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import io
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from
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from google.genai import types
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st.title("Bildanalyse mit Gemini")
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col1, col2 = st.columns(2)
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with col1:
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uploaded_file = st.file_uploader("Bild hochladen", type=["jpg", "png", "jpeg"])
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image = Image.open(uploaded_file)
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st.image(image, caption="Hochgeladenes Bild", use_container_width=True)
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if st.button("Analysieren"):
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with st.spinner("Analysiere Bild..."):
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try:
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#
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image_bytes = io.BytesIO()
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image.save(image_bytes, format=image.format)
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# Anfrage an Gemini senden
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client = genai.Client(api_key=os.getenv("KEY")) # Client innerhalb der Funktion erstellen
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response = client.models.generate_content(
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model="gemini-2.0-flash-exp", # Oder "gemini-2.0-flash-exp", je nach Verfügbarkeit
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contents=["Beschreibe dieses Bild und identifiziere das Hauptobjekt.", types.Part.from_bytes(data=image_bytes, mime_type=f"image/{image.format.lower()}")
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with col2:
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st.write(
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except Exception as e:
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st.error(f"
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import os
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import re
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import io
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import streamlit as st
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from PIL import Image, ImageDraw
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from google import genai
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from google.genai import types
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# Hilfsfunktionen
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def parse_list_boxes(text):
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"""Extrahiert Bounding Boxes aus dem Antworttext"""
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pattern = r'\[([\d\.]+),\s*([\d\.]+),\s*([\d\.]+),\s*([\d\.]+)\]'
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matches = re.findall(pattern, text)
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return [[float(m) for m in match] for match in matches]
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def draw_bounding_boxes(image, boxes):
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"""Zeichnet Bounding Boxes auf das Bild"""
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draw = ImageDraw.Draw(image)
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width, height = image.size
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for box in boxes:
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ymin, xmin, ymax, xmax = box
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draw.rectangle([
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xmin * width,
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ymin * height,
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xmax * width,
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ymax * height
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], outline="red", width=3)
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return image
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# Streamlit UI
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st.title("Bildanalyse mit Gemini")
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col1, col2 = st.columns(2)
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with col1:
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uploaded_file = st.file_uploader("Bild hochladen", type=["jpg", "png", "jpeg"])
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object_name = st.text_input("Objekt zur Erkennung", placeholder="z.B. 'Auto', 'Person'")
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if uploaded_file and object_name:
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image = Image.open(uploaded_file)
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st.image(image, caption="Hochgeladenes Bild", use_container_width=True)
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if st.button("Analysieren"):
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with st.spinner("Analysiere Bild..."):
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try:
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# Bildvorbereitung
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image_bytes = io.BytesIO()
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image.save(image_bytes, format=image.format)
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image_part = types.Part.from_bytes(
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data=image_bytes.getvalue(),
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mime_type=f"image/{image.format.lower()}"
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)
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# API-Client
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client = genai.Client(api_key=os.getenv("KEY"))
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# Bildbeschreibung
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desc_response = client.models.generate_content(
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model="gemini-1.0-pro-vision",
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contents=["Beschreibe dieses Bild detailliert.", image_part]
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)
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# Objekterkennung
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detection_prompt = (
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f"Gib alle Bounding Boxes für {object_name} im Format "
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"[ymin, xmin, ymax, xmax] als Liste. Nur die Liste zurückgeben!"
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)
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box_response = client.models.generate_content(
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model="gemini-1.0-pro-vision",
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contents=[detection_prompt, image_part]
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)
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# Verarbeitung
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boxes = parse_list_boxes(box_response.text)
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annotated_image = image.copy()
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if boxes:
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annotated_image = draw_bounding_boxes(annotated_image, boxes)
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result_text = f"{len(boxes)} {object_name} erkannt"
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else:
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result_text = "Keine Objekte gefunden"
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# Ergebnisse anzeigen
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with col2:
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st.write("## Beschreibung:")
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st.write(desc_response.text)
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st.write("## Objekterkennung:")
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st.write(result_text)
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st.image(annotated_image, caption="Erkannte Objekte", use_column_width=True)
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except Exception as e:
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st.error(f"Fehler: {str(e)}")
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