📝 | Update README.md

README.md

@@ -1,2 +1,128 @@
-# FOBG
+# 🪄 FOBG — AI Background Remover
 
+Remove backgrounds from **images** and **videos** using AI, powered by [rembg](https://github.com/danielzhanika/rembg).
+
+## Features
+
+- **Image BG Removal** — Upload any image and get back a transparent PNG
+- **Video BG Removal** — Frame-by-frame processing with true alpha channel output
+- **Multiple AI Models** — u2net, u2netp, u2net_human_seg, isnet-general-use, isnet-anime
+- **Gradio UI** — Clean, interactive web interface with fine-tuning controls
+- **CLI Mode** — Script-friendly command-line interface for batch processing
+- **Fine-tune Controls** — Alpha matting, foreground/background thresholds, erosion mask
+
+## Installation
+
+### Prerequisites
+
+- [Python](https://www.python.org/) 3.9 or later
+- [ffmpeg](https://ffmpeg.org/) — required for video processing (Mac: `brew install ffmpeg`; Debian/Ubuntu: `sudo apt install ffmpeg`)
+
+### Option 1 — Virtual Environment (Recommended)
+
+```bash
+cd /mnt/games/Coding/Python/AI/FOBG
+python -m venv .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+```
+
+### Option 2 — Global Install
+
+```bash
+pip install -r requirements.txt
+```
+
+> **Note:** The first run will automatically download the selected AI model(s) (~40–170 MB depending on the model).
+
+## Usage
+
+### Web UI (Gradio)
+
+```bash
+python main.py
+```
+
+Opens at [http://localhost:7860](http://localhost:7860).
+
+Additional options:
+
+```bash
+python main.py --host 0.0.0.0 --port 7860    # Bind to a specific host/port
+python main.py --share                         # Create a public share link
+python main.py --no-browser                    # Do not open browser automatically
+```
+
+### CLI Mode
+
+```bash
+python main.py --cli input.jpg                 # Remove image background
+python main.py --cli input.jpg -o result.png   # Specify output path
+python main.py --cli video.mp4 --video          # Remove background from video
+python main.py --cli video.mp4 --video -o out.mov   # .mov output preserves alpha channel
+```
+
+CLI options:
+
+| Flag | Description |
+|------|-------------|
+| `--model <name>` | AI model to use (default: `u2net`) |
+| `--alpha-matting` | Enable alpha matting for fine edges |
+| `--no-alpha-matting` | Disable alpha matting |
+| `--video` | Treat input as video (frame-by-frame processing) |
+
+## Available Models
+
+| Model | Description | Speed |
+|-------|-------------|-------|
+| `u2net` | Default, balanced quality/speed | ⚡ Fast |
+| `u2netp` | Lightweight, slightly lower quality | 🚀 Fastest |
+| `u2net_human_seg` | Optimized for human segmentation | ⚡ Fast |
+| `u2net_3b` | Heavy, higher accuracy | 🐢 Slower |
+| `isnet-general-use` | General purpose, high accuracy | 🐢 Slower |
+| `isnet-anime` | Optimized for anime illustrations | ⚡ Fast |
+
+## Gradio Controls
+
+### Image Tab
+
+- **Upload Image** — Accepts PNG, JPEG, or WebP
+- **Model** — Choose the AI model
+- **Alpha Matting** — Fine-tune edges (slower but cleaner results)
+- **Foreground Threshold** — How much of the image is considered foreground (1–255)
+- **Background Threshold** — How much is considered background (1–255)
+- **Erosion Mask Dilation** — Morphological operation to refine the mask (0–32)
+
+### Video Tab
+
+- **Upload Video** — Accepts MP4, AVI, WebM, and MOV
+- Same model and fine-tuning controls as the image tab
+
+## Notes
+
+- **Image processing** typically takes 1–5 seconds depending on resolution and model
+- **Video processing** is frame-by-frame and can take minutes for longer clips
+- Image output is saved as **PNG with transparency**
+- Video output uses **.mov with ProRes 4444 alpha** when alpha is desired, or **MP4 with libx264** (black background where alpha is zero)
+- All results are stored in the `output/` directory
+
+## Project Structure
+
+```
+FOBG/
+├── main.py                   # Entry point (Gradio + CLI)
+├── requirements.txt          # Python dependencies
+├── src/
+│   ├── core/
+│   │   ├── bg_remove.py      # Image background removal (rembg)
+│   │   └── video_bg_remove.py# Video background removal (OpenCV + rembg + ffmpeg)
+│   └── ui/
+│       └── app.py            # Gradio web interface
+├── output/                   # Processed results saved here
+├── tests/                    # Unit tests
+└── docs/                     # Extended documentation
+```
+
+## License
+
+MIT License — see [LICENSE](LICENSE) for details.