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Update app.py
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app.py
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# app.py
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from PIL import Image
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import gradio as gr
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import numpy as np
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# Wir brauchen NumPy für das horizontale Stapeln (wird von PIL nicht direkt unterstützt)
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# 1. Stacking-Funktion
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def stack_horizontal(img1_path, img2_path):
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"""
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Stapelt zwei Bilder horizontal nebeneinander.
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Beide Bilder werden auf die Höhe des ersten Bildes skaliert.
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"""
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img1 = Image.open(img1_path).convert("RGB")
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img2 = Image.open(img2_path).convert("RGB")
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# 1. Höhe angleichen (Voraussetzung für horizontales Stapeln)
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h1, h2 = img1.size[1], img2.size[1]
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if h1 != h2:
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# Skaliere img2 auf die Höhe von img1, behalte Seitenverhältnis
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w2_new = int(img2.size[0] * h1 / h2)
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img2 = img2.resize((w2_new, h1))
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# 2. Neues Bild erstellen und Bilder hineinkopieren
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total_width = img1.size[0] + img2.size[0]
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total_height = img1.size[1]
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return stacked_img
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# 2. Blending-Funktion (wie zuvor)
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def blend_images_cpu(image1_path, image2_path, alpha: float):
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img1 = Image.open(image1_path).convert("RGBA")
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img2 = Image.open(image2_path).convert("RGBA")
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if img1.size != img2.size:
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img2 = img2.resize(img1.size)
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# 3. Haupt-Inferenzfunktion
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def infer(image1_path, image2_path, method, alpha: float):
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if method == "Blend":
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# Blending-Faktor (Alpha) wird nur bei Blend genutzt
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return blend_images_cpu(image1_path, image2_path, alpha)
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elif method == "Stack Horizontal":
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# Alpha-Faktor wird ignoriert
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return stack_horizontal(image1_path, image2_path)
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# Gradio Interface
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if __name__ == "__main__":
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# Liste der verfügbaren Methoden
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methods = ["Blend", "Stack Horizontal"]
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# app.py - Fixed Version
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from PIL import Image
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import gradio as gr
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import numpy as np
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def stack_horizontal(img1_path, img2_path):
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"""Stapelt zwei Bilder horizontal nebeneinander."""
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img1 = Image.open(img1_path).convert("RGB")
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img2 = Image.open(img2_path).convert("RGB")
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h1, h2 = img1.size[1], img2.size[1]
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if h1 != h2:
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w2_new = int(img2.size[0] * h1 / h2)
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img2 = img2.resize((w2_new, h1), Image.Resampling.LANCZOS)
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total_width = img1.size[0] + img2.size[0]
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total_height = img1.size[1]
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return stacked_img
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def blend_images_cpu(image1_path, image2_path, alpha: float):
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"""Blendet zwei Bilder mit Alpha-Faktor."""
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img1 = Image.open(image1_path).convert("RGBA")
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img2 = Image.open(image2_path).convert("RGBA")
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if img1.size != img2.size:
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img2 = img2.resize(img1.size, Image.Resampling.LANCZOS)
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# Blend gibt RGBA zurück, konvertiere zu RGB für konsistente Ausgabe
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blended = Image.blend(img1, img2, alpha)
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return blended.convert("RGB")
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def infer(image1, image2, method, alpha):
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"""Haupt-Inferenzfunktion."""
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# Gradio gibt manchmal None zurück wenn kein Bild hochgeladen wurde
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if image1 is None or image2 is None:
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return None
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try:
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if method == "Blend":
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return blend_images_cpu(image1, image2, alpha)
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elif method == "Stack Horizontal":
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return stack_horizontal(image1, image2)
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except Exception as e:
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print(f"Fehler bei der Verarbeitung: {e}")
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return None
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# Gradio Interface
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if __name__ == "__main__":
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methods = ["Blend", "Stack Horizontal"]
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with gr.Blocks(title="CPU Image Transformer") as demo:
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gr.Markdown("# CPU Image Transformer (Blend & Stack)")
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gr.Markdown("Wähle zwischen Blending oder Horizontalem Stacking. Reine CPU-Operation.")
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with gr.Row():
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with gr.Column():
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img1 = gr.Image(type="filepath", label="Bild 1 (Basisbild)")
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img2 = gr.Image(type="filepath", label="Bild 2 (Zusatzbild)")
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method = gr.Dropdown(methods, label="Transformationsmethode", value="Blend")
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alpha = gr.Slider(minimum=0.0, maximum=1.0, step=0.05, value=0.5,
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label="Blending-Faktor (nur bei 'Blend')")
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btn = gr.Button("Verarbeiten")
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with gr.Column():
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output = gr.Image(label="Resultat")
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btn.click(fn=infer, inputs=[img1, img2, method, alpha], outputs=output)
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demo.queue().launch(share=False, server_name="127.0.0.1", server_port=7860)
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