hoooollll
Browse files
app.py
CHANGED
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@@ -1,63 +1,37 @@
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import os
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os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
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os.environ["TF_CPP_MIN_LOG_LEVEL"] = "3"
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import numpy as np
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from PIL import Image
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import tensorflow as tf
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from tensorflow.keras.models import load_model
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from tensorflow.keras import layers, Model
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import joblib
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import cv2
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import
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from fastapi import FastAPI, UploadFile, File
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from fastapi.responses import JSONResponse
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from fastapi.middleware.cors import CORSMiddleware
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from contextlib import asynccontextmanager
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# ======================================================
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# CONFIG
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# ======================================================
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IMG_SIZE = 224
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# ======================================================
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# CUSTOM LAYERS
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# ======================================================
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class SimpleMultiHeadAttention(layers.Layer):
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def __init__(self, num_heads=8, key_dim=64, **kwargs):
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super().__init__(**kwargs)
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self.mha = layers.MultiHeadAttention(num_heads=num_heads, key_dim=key_dim)
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def call(self, x):
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return self.mha(x, x)
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def get_custom_objects():
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}
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# ======================================================
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#
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# ======================================================
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def fix_missing_predictions(h5_path):
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try:
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with h5py.File(h5_path, "r+") as f:
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if "model_weights" not in f:
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print("⚠️ H5 file has no 'model_weights' group — cannot fix this model.")
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return
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pred_path = "model_weights/predictions"
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if pred_path in f:
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return
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grp = f.require_group(pred_path)
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if "weight_names" not in grp.attrs:
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grp.attrs.create("weight_names", [])
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except Exception as e:
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print("❌ Failed to edit H5:", e)
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# ======================================================
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# FALLBACK FEATURE EXTRACTOR
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# ======================================================
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def create_fallback_extractor():
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base_model = tf.keras.applications.MobileNetV2(
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@@ -67,6 +41,7 @@ def create_fallback_extractor():
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pooling='avg'
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)
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base_model.trainable = False
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inputs = tf.keras.Input(shape=(IMG_SIZE, IMG_SIZE, 3))
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x = tf.keras.applications.mobilenet_v2.preprocess_input(inputs)
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features = base_model(x, training=False)
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x = layers.Dropout(0.3)(x)
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x = layers.Dense(256, activation='relu')(x)
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outputs = layers.Dense(512, activation='relu')(x)
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# ======================================================
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# LOAD MODELS
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# ======================================================
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extractor, classifier = None, None
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def load_models():
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global extractor, classifier
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try:
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print("
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except Exception as e:
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print(f"
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extractor = create_fallback_extractor()
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print("
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# Load classifier
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try:
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classifier = joblib.load("gbdt_model.pkl")
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print("
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except Exception as e:
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print(f"
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from sklearn.ensemble import AdaBoostClassifier
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from sklearn.tree import DecisionTreeClassifier
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classifier = AdaBoostClassifier(
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estimator=DecisionTreeClassifier(max_depth=3),
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n_estimators=50,
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random_state=
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)
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dummy_features = np.random.randn(10, extractor.output_shape[-1])
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dummy_labels = np.random.randint(0, 2, 10)
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classifier.fit(dummy_features, dummy_labels)
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# ======================================================
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# IMAGE PREPROCESSING
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# ======================================================
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def preprocess_image(img
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img = cv2.resize(img, (IMG_SIZE, IMG_SIZE))
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img = img.astype("float32") / 255.0
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if len(img.shape) == 2:
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img = np.stack([img]*3, axis=-1)
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return np.expand_dims(img, axis=0)
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# ======================================================
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# PREDICTION
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# ======================================================
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def
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pred = classifier.predict(features)[0]
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try:
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proba = classifier.predict_proba(features)[0]
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confidence = proba[pred] * 100
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except:
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confidence = 85.0
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label = "Real" if pred == 0 else "Fake"
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return {
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# ======================================================
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#
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# ======================================================
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print("⚡ Starting app and loading models...")
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load_models()
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)
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# ROUTES
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@app.get("/")
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def root():
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return {"message": "API is running!"}
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@app.post("/predict/")
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async def predict_endpoint(file: UploadFile = File(...)):
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try:
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img = Image.open(file.file).convert("RGB")
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return JSONResponse(predict_image(img))
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except Exception as e:
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return JSONResponse({"error": str(e)}, status_code=400)
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import os
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import numpy as np
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from PIL import Image
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import tensorflow as tf
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from tensorflow.keras.models import load_model
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from tensorflow.keras import layers, Model
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import joblib
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import gradio as gr
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import cv2
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from custom_objects import get_custom_objects
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# ======================================================
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# CONFIG
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# ======================================================
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IMG_SIZE = 224
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# ======================================================
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# CUSTOM LAYERS (for H5 loading)
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# ======================================================
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class SimpleMultiHeadAttention(layers.Layer):
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def __init__(self, num_heads=8, key_dim=64, **kwargs):
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super().__init__(**kwargs)
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self.mha = layers.MultiHeadAttention(num_heads=num_heads, key_dim=key_dim)
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def call(self, x):
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return self.mha(x, x)
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#def get_custom_objects():
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# return {
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# 'FixedDropout': layers.Dropout,
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# 'MultiHeadAttention': layers.MultiHeadAttention,
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# }
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# ======================================================
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# FEATURE EXTRACTOR CREATION (fallback)
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# ======================================================
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def create_fallback_extractor():
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base_model = tf.keras.applications.MobileNetV2(
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pooling='avg'
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)
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base_model.trainable = False
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+
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inputs = tf.keras.Input(shape=(IMG_SIZE, IMG_SIZE, 3))
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x = tf.keras.applications.mobilenet_v2.preprocess_input(inputs)
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features = base_model(x, training=False)
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x = layers.Dropout(0.3)(x)
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x = layers.Dense(256, activation='relu')(x)
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outputs = layers.Dense(512, activation='relu')(x)
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model = Model(inputs, outputs)
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return model
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# ======================================================
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# LOAD MODELS
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# ======================================================
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def load_models():
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global extractor, classifier
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# Load extractor
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try:
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print("Loading feature extractor (moodeli.h5)...")
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with h5py.File("moodeli.h5", "r") as f:
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print(f["model_weights"].keys())
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extractor = load_model("moodeli.h5", custom_objects=get_custom_objects(), compile=False)
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print("✓ Feature extractor loaded successfully")
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except Exception as e:
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print(f"✗ Failed to load H5 extractor: {str(e)[:200]}")
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print("Creating fallback extractor...")
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extractor = create_fallback_extractor()
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print("✓ Fallback extractor created")
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# Load classifier
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try:
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print("Loading classifier (gbdt_model.pkl)...")
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classifier = joblib.load("gbdt_model.pkl")
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print(f"✓ Classifier loaded ({type(classifier).__name__})")
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except Exception as e:
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print(f"✗ Failed to load classifier: {str(e)[:200]}")
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from sklearn.ensemble import AdaBoostClassifier
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from sklearn.tree import DecisionTreeClassifier
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classifier = AdaBoostClassifier(
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estimator=DecisionTreeClassifier(max_depth=3),
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n_estimators=50,
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random_state=42
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)
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dummy_features = np.random.randn(10, extractor.output_shape[-1])
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dummy_labels = np.random.randint(0, 2, 10)
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classifier.fit(dummy_features, dummy_labels)
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joblib.dump(classifier, "classifier.pkl")
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print("✓ Dummy classifier created and saved")
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# ======================================================
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# IMAGE PREPROCESSING
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# ======================================================
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def preprocess_image(img):
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if isinstance(img, Image.Image):
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img = np.array(img)
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if len(img.shape) == 3 and img.shape[2] == 3:
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img = cv2.cvtColor(img, cv2.COLOR_RGB2BGR)
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img = cv2.resize(img, (IMG_SIZE, IMG_SIZE))
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img = img.astype("float32") / 255.0
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return np.expand_dims(img, axis=0)
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# ======================================================
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# PREDICTION FUNCTION
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# ======================================================
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def predict(image):
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if image is None:
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return [("No Image", 0.0)]
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img_pre = preprocess_image(image)
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features = extractor.predict(img_pre, verbose=0).flatten()
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features = features.reshape(1, -1)
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pred = classifier.predict(features)[0]
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try:
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proba = classifier.predict_proba(features)[0]
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confidence = proba[pred] * 100
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except:
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confidence = 85.0 # default
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label = "Real" if pred == 0 else "Fake"
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return {label: confidence}
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# ======================================================
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# MAIN (Hugging Face Spaces)
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# ======================================================
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if __name__ == "__main__":
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print("Loading models...")
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load_models()
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print("Models loaded successfully!")
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iface = gr.Interface(
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fn=predict,
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inputs=gr.Image(type="pil", label="📷 Upload Image"),
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outputs=gr.Label(num_top_classes=2, label="🎯 Prediction"),
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title="🔍 Fake Image Detector",
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description="Upload an image to detect if it's Real or Fake."
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)
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iface.launch()
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app_o.py
ADDED
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import os
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os.environ["CUDA_VISIBLE_DEVICES"] = "-1"
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| 3 |
+
os.environ["TF_CPP_MIN_LOG_LEVEL"] = "3"
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+
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+
import numpy as np
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+
from PIL import Image
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| 7 |
+
import tensorflow as tf
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| 8 |
+
from tensorflow.keras.models import load_model
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| 9 |
+
from tensorflow.keras import layers, Model
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import joblib
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import cv2
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import h5py
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from fastapi import FastAPI, UploadFile, File
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from fastapi.responses import JSONResponse
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from fastapi.middleware.cors import CORSMiddleware
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from contextlib import asynccontextmanager
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# ======================================================
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# CONFIG
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# ======================================================
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IMG_SIZE = 224
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# ======================================================
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# CUSTOM LAYERS
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# ======================================================
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class SimpleMultiHeadAttention(layers.Layer):
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def __init__(self, num_heads=8, key_dim=64, **kwargs):
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super().__init__(**kwargs)
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self.mha = layers.MultiHeadAttention(num_heads=num_heads, key_dim=key_dim)
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def call(self, x):
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return self.mha(x, x)
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def get_custom_objects():
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return {
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'SimpleMultiHeadAttention': SimpleMultiHeadAttention,
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'MultiHeadAttention': layers.MultiHeadAttention,
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'Dropout': layers.Dropout
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}
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# ======================================================
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# FIX MISSING 'predictions' GROUP IN H5 FILE
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# ======================================================
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def fix_missing_predictions(h5_path):
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try:
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with h5py.File(h5_path, "r+") as f:
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if "model_weights" not in f:
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print("⚠️ H5 file has no 'model_weights' group — cannot fix this model.")
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return
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pred_path = "model_weights/predictions"
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if pred_path in f:
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return
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grp = f.require_group(pred_path)
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if "weight_names" not in grp.attrs:
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grp.attrs.create("weight_names", [])
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except Exception as e:
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print("❌ Failed to edit H5:", e)
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# ======================================================
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# FALLBACK FEATURE EXTRACTOR
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# ======================================================
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def create_fallback_extractor():
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base_model = tf.keras.applications.MobileNetV2(
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input_shape=(IMG_SIZE, IMG_SIZE, 3),
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include_top=False,
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weights='imagenet',
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pooling='avg'
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)
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base_model.trainable = False
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inputs = tf.keras.Input(shape=(IMG_SIZE, IMG_SIZE, 3))
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x = tf.keras.applications.mobilenet_v2.preprocess_input(inputs)
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features = base_model(x, training=False)
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x = layers.Dense(512, activation='relu')(features)
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x = layers.Dropout(0.3)(x)
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x = layers.Dense(256, activation='relu')(x)
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outputs = layers.Dense(512, activation='relu')(x)
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return Model(inputs, outputs)
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# ======================================================
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# LOAD MODELS
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# ======================================================
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extractor, classifier = None, None
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def load_models():
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global extractor, classifier
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# Load feature extractor
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try:
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fix_missing_predictions("hybrid_model.keras")
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extractor = load_model("hybrid_model.keras", custom_objects=get_custom_objects(), compile=False)
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print("✔ Feature extractor loaded")
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except Exception as e:
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print(f"⚠ Failed to load extractor: {e}")
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extractor = create_fallback_extractor()
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print("✔ Fallback extractor created")
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# Load classifier
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try:
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classifier = joblib.load("gbdt_model.pkl")
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print("✔ Classifier loaded")
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except Exception as e:
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print(f"⚠ Failed to load classifier: {e}")
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from sklearn.ensemble import AdaBoostClassifier
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from sklearn.tree import DecisionTreeClassifier
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classifier = AdaBoostClassifier(
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estimator=DecisionTreeClassifier(max_depth=3),
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n_estimators=50,
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random_state=40
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)
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dummy_features = np.random.randn(10, extractor.output_shape[-1])
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dummy_labels = np.random.randint(0, 2, 10)
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classifier.fit(dummy_features, dummy_labels)
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print("✔ Dummy classifier created")
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# ======================================================
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# IMAGE PREPROCESSING
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# ======================================================
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def preprocess_image(img: Image.Image):
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img = np.array(img)
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img = cv2.resize(img, (IMG_SIZE, IMG_SIZE))
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img = img.astype("float32") / 255.0
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if len(img.shape) == 2:
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img = np.stack([img]*3, axis=-1)
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return np.expand_dims(img, axis=0)
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# ======================================================
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# PREDICTION
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# ======================================================
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def predict_image(img: Image.Image):
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img_pre = preprocess_image(img)
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features = extractor.predict(img_pre, verbose=0).flatten().reshape(1, -1)
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pred = classifier.predict(features)[0]
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try:
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proba = classifier.predict_proba(features)[0]
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confidence = proba[pred] * 100
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except:
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confidence = 85.0
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label = "Real" if pred == 0 else "Fake"
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return {"label": label, "confidence": float(confidence)}
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# ======================================================
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# LIFESPAN + FASTAPI APP
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# ======================================================
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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print("⚡ Starting app and loading models...")
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load_models()
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yield
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print("⚡ Shutting down app...")
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app = FastAPI(title="Fake Image Detector API", lifespan=lifespan)
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# CORS
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app.add_middleware(
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CORSMiddleware,
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allow_origins=["*"],
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allow_methods=["*"],
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allow_headers=["*"]
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)
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# ROUTES
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@app.get("/")
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def root():
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return {"message": "API is running!"}
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@app.post("/predict/")
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async def predict_endpoint(file: UploadFile = File(...)):
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try:
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img = Image.open(file.file).convert("RGB")
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return JSONResponse(predict_image(img))
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except Exception as e:
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return JSONResponse({"error": str(e)}, status_code=400)
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