Cinematic Lightroom Preset Generator

A GenAI-powered system that generates cinematic Adobe Lightroom presets by analyzing image differences. Separates semantic intent (AI) from deterministic parameter generation to avoid hallucination.

Features

• Image difference analysis
• AI-powered semantic style inference
• Deterministic Lightroom parameter generation
• Lightroom .xmp preset export
• FastAPI backend + Simple frontend

Project Structure

.
├── backend/
│   ├── api/
│   │   └── routes.py
│   ├── services/
│   │   ├── color_safety.py
│   │   ├── feature_diff.py
│   │   ├── image_analysis.py
│   │   ├── lab_color_transfer.py
│   │   ├── llm_service.py
│   │   └── preset_generator.py
│   ├── .env
│   ├── config.py
│   └── main.py
├── frontend/
│   ├── app.js
│   ├── index.html
│   └── style.css
├── README.md
└── requirements.txt

Installation

git clone https://github.com/yourusername/your-repo-name.git
cd your-repo-name
python -m venv venv
source venv/bin/activate  # Linux/Mac or venv\Scripts\activate for Windows
pip install -r requirements.txt

Configuration

Create .env file in the backend/ directory:

GEMINI_API_KEY=your_api_key_here

Create .gitignore:

.env
backend/.env
venv/
__pycache__/
*.pyc
*.xmp

Usage

Start Backend Server

cd backend
uvicorn main:app --reload

• Backend API: http://127.0.0.1:8000
• API Docs: http://127.0.0.1:8000/docs

Open Frontend

Open frontend/index.html in your browser or serve it with:

cd frontend
python -m http.server 8080

Then visit http://localhost:8080

API Endpoints

POST /generate-preset

• Upload reference and target images
• Returns .xmp preset file

GET /download/{filename}

• Download generated preset