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# app.py - Streamlit für Hugging Face Spaces
import os
import tempfile
# ----------------------------------------------------
# 🚨 KRITISCHE FIXES FÜR DEN PERMISSION ERROR
# Zwingt Streamlit, seine temporären/Konfigurationsdateien
# in den beschreibbaren /tmp-Bereich zu schreiben.
# ----------------------------------------------------
# 1. Temporären, beschreibbaren Pfad erstellen
TEMP_STREAMLIT_HOME = os.path.join(tempfile.gettempdir(), "st_config_workaround")
os.makedirs(TEMP_STREAMLIT_HOME, exist_ok=True)
# 2. Umgebungsvariablen setzen
os.environ["STREAMLIT_HOME"] = TEMP_STREAMLIT_HOME
os.environ["STREAMLIT_GATHER_USAGE_STATS"] = "false"
# 3. Minimale config.toml erstellen, um Schreibversuche zu unterbinden
CONFIG_PATH = os.path.join(TEMP_STREAMLIT_HOME, "config.toml")
CONFIG_CONTENT = """
[browser]
gatherUsageStats = false
[server]
headless = true
port = 7860
enableCORS = false
"""
with open(CONFIG_PATH, "w") as f:
f.write(CONFIG_CONTENT)
# JETZT erst Streamlit importieren!
import streamlit as st
from PIL import Image
import io
import numpy as np
def stack_horizontal(img1, img2):
"""Stapelt zwei Bilder horizontal nebeneinander."""
img1 = img1.convert("RGB")
img2 = img2.convert("RGB")
h1, h2 = img1.size[1], img2.size[1]
if h1 != h2:
w2_new = int(img2.size[0] * h1 / h2)
img2 = img2.resize((w2_new, h1), Image.Resampling.LANCZOS)
total_width = img1.size[0] + img2.size[0]
total_height = img1.size[1]
stacked_img = Image.new('RGB', (total_width, total_height))
stacked_img.paste(img1, (0, 0))
stacked_img.paste(img2, (img1.size[0], 0))
return stacked_img
def blend_images_cpu(img1, img2, alpha):
"""Blendet zwei Bilder mit Alpha-Faktor."""
img1 = img1.convert("RGBA")
img2 = img2.convert("RGBA")
if img1.size != img2.size:
img2 = img2.resize(img1.size, Image.Resampling.LANCZOS)
blended = Image.blend(img1, img2, alpha)
return blended.convert("RGB")
# Streamlit UI
st.set_page_config(page_title="Image Transformer", layout="wide")
st.title("🖼️ CPU Image Transformer")
st.markdown("**Blend** oder **Stack** - Reine CPU-Operation")
col1, col2 = st.columns(2)
with col1:
st.subheader("Eingabe")
img1_file = st.file_uploader("Bild 1 (Basisbild)", type=["png", "jpg", "jpeg", "webp"])
img2_file = st.file_uploader("Bild 2 (Zusatzbild)", type=["png", "jpg", "jpeg", "webp"])
method = st.selectbox("Transformationsmethode", ["Blend", "Stack Horizontal"])
alpha = st.slider("Blending-Faktor (nur bei Blend)", 0.0, 1.0, 0.5, 0.05)
process_btn = st.button("🚀 Verarbeiten", type="primary")
with col2:
st.subheader("Resultat")
result_placeholder = st.empty()
# Verarbeitung
if process_btn:
if img1_file and img2_file:
with st.spinner("Verarbeite..."):
try:
img1 = Image.open(img1_file)
img2 = Image.open(img2_file)
if method == "Blend":
result = blend_images_cpu(img1, img2, alpha)
else:
result = stack_horizontal(img1, img2)
result_placeholder.image(result, use_container_width=True)
# Download-Button
buf = io.BytesIO()
result.save(buf, format="PNG")
st.download_button(
label="💾 Download Resultat",
data=buf.getvalue(),
file_name=f"result_{method.lower().replace(' ', '_')}.png",
mime="image/png"
)
except Exception as e:
st.error(f"Fehler: {e}")
else:
st.warning("⚠️ Bitte beide Bilder hochladen!") |