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| from fastapi import FastAPI, File, UploadFile | |
| from fastapi.middleware.cors import CORSMiddleware | |
| import tensorflow as tf | |
| import numpy as np | |
| import google.generativeai as genai | |
| import os | |
| app = FastAPI() | |
| # Add CORS middleware | |
| app.add_middleware( | |
| CORSMiddleware, | |
| allow_origins=["*"], | |
| allow_credentials=True, | |
| allow_methods=["*"], | |
| allow_headers=["*"], | |
| ) | |
| # Configure Gemini API | |
| GEMINI_API_KEY = os.getenv('GEMINI_API_KEY', 'AIzaSyBx0A7BA-nKVZOiVn39JXzdGKgeGQqwAFg') | |
| genai.configure(api_key=GEMINI_API_KEY) | |
| gemini_model = genai.GenerativeModel('gemini-pro') | |
| # Load model with specific version handling | |
| model = tf.keras.models.load_model( | |
| 'Image_classify.keras', | |
| custom_objects=None, | |
| compile=False # Don't compile the model on load | |
| ) | |
| # Define categories and image dimensions | |
| data_cat = ['disposable cups', 'paper', 'plastic bottle'] | |
| img_height, img_width = 224, 224 | |
| def generate_recycling_insight(detected_object): | |
| """Generate sustainability insights for detected objects""" | |
| try: | |
| prompt = f""" | |
| You are a sustainability-focused AI. Analyze the {detected_object} (which is a solid dry waste) | |
| and generate the top three innovative, eco-friendly recommendations for repurposing it. Ensure each recommendation is: | |
| - Give the Title of the recommendation | |
| - Practical and easy to implement | |
| - Environmentally beneficial | |
| - Clearly explained in one or two concise sentences | |
| """ | |
| response = gemini_model.generate_content(prompt) | |
| return response.text.strip() | |
| except Exception as e: | |
| return f"Error generating insight: {str(e)}" | |
| async def predict(file: UploadFile = File(...)): | |
| try: | |
| # Read and preprocess the image | |
| contents = await file.read() | |
| image = tf.image.decode_image(contents, channels=3) | |
| image = tf.image.resize(image, [img_height, img_width]) | |
| image = tf.cast(image, tf.float32) | |
| image = tf.expand_dims(image, 0) | |
| # Make prediction | |
| predictions = model.predict(image, verbose=0) | |
| score = tf.nn.softmax(predictions[0]) | |
| confidence = float(np.max(score) * 100) | |
| if confidence < 45: | |
| return { | |
| "error": "Confidence too low to make a prediction", | |
| "confidence": confidence | |
| } | |
| predicted_class = data_cat[np.argmax(score)] | |
| sustainability_insight = generate_recycling_insight(predicted_class) | |
| return { | |
| "class": predicted_class, | |
| "confidence": confidence, | |
| "insights": sustainability_insight | |
| } | |
| except Exception as e: | |
| return {"error": str(e)} | |
| if __name__ == "__main__": | |
| import uvicorn | |
| uvicorn.run(app, host="0.0.0.0", port=7860) |