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Update app.py
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app.py
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import
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import tensorflow as tf
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from tensorflow.keras.models import load_model
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from PIL import Image
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import os
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# 1. Konstanta dan Pemuatan Model (di luar fungsi)
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# Pemuatan model harus dilakukan sekali saat aplikasi dimulai
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MODEL_PATH = 'model_cnn.h5'
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IMG_HEIGHT = 224
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IMG_WIDTH = 224
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class_names = [
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'freshapples', 'freshbanana', 'freshbittergroud', 'freshcapsicum', 'freshcucumber',
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'freshokra', 'freshoranges', 'freshpotato', 'freshtomato',
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'rottenokra', 'rottenoranges', 'rottenpotato', 'rottentomato'
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]
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# Pastikan path model benar, gunakan os.path.join untuk robustness
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try:
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# os.getcwd() akan mengembalikan direktori kerja saat ini di lingkungan Space
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full_model_path = os.path.join(os.getcwd(), MODEL_PATH)
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model = load_model(full_model_path)
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print(f"Model loaded successfully from: {full_model_path}")
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except Exception as e:
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print(f"Error loading model
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# Jika model gagal dimuat, aplikasi tidak bisa berjalan.
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# Disarankan untuk mengeluarkan error agar build gagal jika ini terjadi
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raise RuntimeError(f"Failed to load model: {e}")
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# Gradio akan melewatkan input gambar dalam format numpy array jika Anda menggunakan gr.Image(type="numpy")
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# atau sebagai path string jika Anda menggunakan gr.Image(type="filepath").
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# Saya sarankan type="numpy" karena lebih mudah diproses langsung.
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def predict_image_gradio(input_image_numpy_array):
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if input_image_numpy_array is None:
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return "Mohon unggah gambar."
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try:
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img_array = np.array(img) # Konversi kembali ke numpy array
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img_array = np.expand_dims(img_array, axis=0) # Tambahkan batch dimension
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# Lakukan prediksi
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prediction = model.predict(img_array)
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# Post-processing hasil
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predicted_class_index = np.argmax(prediction[0])
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confidence = float(prediction[0][predicted_class_index]) * 100
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pred_class_name = class_names[predicted_class_index]
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except Exception as e:
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# 3. Definisikan Antarmuka Gradio
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# Pastikan 'inputs' dan 'outputs' sesuai dengan fungsi 'predict_image_gradio'
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iface = gr.Interface(
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fn=predict_image_gradio,
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inputs=gr.Image(type="numpy", label="Unggah Gambar Makanan"), # Gradio akan memberikan numpy array dari gambar
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outputs=gr.Textbox(label="Prediksi"), # Output berupa teks
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title="Demo Deteksi Kesegaran Makanan dengan CNN",
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description="Unggah gambar apel, pisang, pare, paprika, timun, bendi, jeruk, kentang, atau tomat untuk memprediksi kesegarannya (segar atau busuk)."
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)
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# 4. Luncurkan Aplikasi Gradio (tanpa if __name__ == "__main__":)
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iface.launch()
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# Komentar atau hapus semua kode FastAPI sebelumnya (dari `app = FastAPI()` hingga bawah)
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# Hapus juga import FastAPI, File, UploadFile, JSONResponse, CORSMiddleware
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# karena sudah tidak relevan untuk Gradio.
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from fastapi import FastAPI, File, UploadFile, HTTPException
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from fastapi.middleware.cors import CORSMiddleware
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from tensorflow.keras.models import load_model
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import numpy as np
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from PIL import Image
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import io
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import os
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app = FastAPI()
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# Untuk mengizinkan akses dari frontend kamu (misal domain lain)
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"], # Ganti dengan domain frontend-mu kalau sudah pasti
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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MODEL_PATH = 'model_cnn.h5'
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IMG_HEIGHT = 224
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IMG_WIDTH = 224
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class_names = [
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'freshapples', 'freshbanana', 'freshbittergroud', 'freshcapsicum', 'freshcucumber',
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'freshokra', 'freshoranges', 'freshpotato', 'freshtomato',
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'rottenokra', 'rottenoranges', 'rottenpotato', 'rottentomato'
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]
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try:
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full_model_path = os.path.join(os.getcwd(), MODEL_PATH)
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model = load_model(full_model_path)
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print(f"Model loaded successfully from: {full_model_path}")
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except Exception as e:
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print(f"Error loading model: {e}")
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raise RuntimeError(f"Failed to load model: {e}")
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@app.post("/predict")
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async def predict_image(file: UploadFile = File(...)):
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try:
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contents = await file.read()
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image_pil = Image.open(io.BytesIO(contents)).convert("RGB")
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image_pil = image_pil.resize((IMG_WIDTH, IMG_HEIGHT))
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img_array = np.array(image_pil)
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img_array = np.expand_dims(img_array, axis=0)
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prediction = model.predict(img_array)
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predicted_class_index = np.argmax(prediction[0])
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confidence = float(prediction[0][predicted_class_index]) * 100
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pred_class_name = class_names[predicted_class_index]
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return {
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"title": pred_class_name,
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"confidence": f"{confidence:.2f}",
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"message": f"Prediksi: {pred_class_name} dengan kepercayaan {confidence:.2f}%",
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"details": []
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}
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except Exception as e:
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raise HTTPException(status_code=500, detail=f"Error processing image: {str(e)}")
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