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Video Subtitle Remover Pro

Version Platform License Python

Professional AI-powered tool for removing hard-coded subtitles from videos and images

Features | Installation | Usage | Configuration | CLI | Troubleshooting


Overview

Video Subtitle Remover Pro uses real AI neural networks to remove hard-coded subtitles and text watermarks from videos and images. Unlike simple blur or crop methods, it intelligently fills in removed areas with content that matches the surrounding video.

Based on YaoFANGUK/video-subtitle-remover, enhanced with a professional interface, real LaMa inpainting, multi-engine detection, and 12-language support.

Features

  • Real AI Inpainting — LaMa neural network for high-quality subtitle removal (via simple-lama-inpainting)
  • Multi-Engine Detection — PaddleOCR > EasyOCR > OpenCV fallback chain (automatic)
  • 12 Language Support — English, Chinese, Japanese, Korean, French, German, Spanish, Portuguese, Russian, Arabic, Hindi, Italian
  • GPU Acceleration — NVIDIA CUDA, AMD/Intel DirectML, and CPU fallback
  • Subtitle Region Selector — Draw a rectangle on the first frame to target specific areas
  • Batch Processing — Queue files or drag entire folders for automated processing
  • Before/After Preview — Side-by-side comparison of completed items
  • Dark Professional UI — Catppuccin-inspired theme with real-time progress
  • Audio Preservation — Automatically preserves original audio via FFmpeg
  • Settings Persistence — All settings saved/restored between sessions
  • CI/CD Releases — Automated Windows builds via GitHub Actions

System Requirements

Component Minimum Recommended
OS Windows 10 Windows 11
CPU Intel i5 / AMD Ryzen 5 Intel i7 / AMD Ryzen 7
RAM 8 GB 16+ GB
GPU Any (CPU mode) NVIDIA RTX 2060+
VRAM - 6+ GB
Python 3.10 3.12

Installation

Quick Install

  1. Download or clone this repository
  2. Double-click Run_VSR_Pro.bat — first run automatically:
    • Creates a virtual environment
    • Detects your GPU and installs appropriate packages
    • Installs PaddleOCR, EasyOCR, and LaMa inpainting
    • Launches the application

Manual Install

cd VideoSubtitleRemover

# Create virtual environment
python -m venv venv
.\venv\Scripts\activate

# Install PyTorch (choose one):
# NVIDIA:
pip install torch==2.7.0 torchvision==0.22.0 --index-url https://download.pytorch.org/whl/cu118
# CPU:
pip install torch==2.7.0 torchvision==0.22.0 --index-url https://download.pytorch.org/whl/cpu

# Install dependencies
pip install -r requirements.txt

# Run
python VideoSubtitleRemover.py

FFmpeg (Required for audio)

winget install ffmpeg

Usage

  1. Launch via Run_VSR_Pro.bat
  2. Add files — Click to browse, right-click for folders, or drag & drop
  3. Select algorithm — LAMA (recommended), STTN, or ProPainter
  4. Set language if subtitles are non-English
  5. Optionally set region — Click "Set Region" to draw a rectangle on the subtitle area
  6. Start Processing and monitor progress
  7. Click filename to preview, double-click completed item to open output

Algorithm Comparison

Algorithm Inpainting Engine Speed Quality Best For
LAMA Neural (LaMa) Medium Best Images, animations, general use
STTN OpenCV fallback Fast Good Real-world videos
ProPainter OpenCV fallback Medium Good Motion-heavy videos

LAMA is the recommended mode — it uses a real neural network for inpainting. STTN and ProPainter currently use OpenCV inpainting as fallback until model weights are integrated.

Detection Engines

The app automatically selects the best available engine:

Priority Engine Install Languages
1 PaddleOCR pip install paddleocr 80+
2 EasyOCR pip install easyocr 80+
3 OpenCV fallback Built-in Any (threshold-based)

CLI Usage

Process files from the command line:

python -m backend.processor -i input.mp4 -o output.mp4 -m lama --lang en --crf 20
Flag Description Default
-i, --input Input file path Required
-o, --output Output file path Required
-m, --mode Algorithm (sttn/lama/propainter) sttn
-g, --gpu GPU device ID (-1 for CPU) 0
-l, --lang Detection language en
--crf Output quality (15-35, lower=better) 23
--skip-detection Use manual region only Off
--fast LAMA fast mode Off
--no-audio Strip audio Off

Configuration

Settings are stored in %APPDATA%\VideoSubtitleRemoverPro\settings.json and persist across sessions.

Advanced Settings

Setting Description Default Range
Neighbor Stride STTN temporal window 10 5-30
Reference Length STTN reference frames 10 5-30
Max Load Frames Batch size 30 10-100
CRF Quality Output quality (lower=better) 23 15-35

Troubleshooting

CUDA out of memory
  • Reduce Max Load Frames in Advanced Settings
  • Switch to LAMA mode (lower VRAM)
  • Use CPU mode as fallback
No audio in output
  • Install FFmpeg: winget install ffmpeg
  • Ensure "Preserve original audio" is checked
Poor detection accuracy
  • Try changing the detection language to match your subtitles
  • Use "Set Region" to manually define the subtitle area
  • Install PaddleOCR for best detection accuracy
Application won't start
  • Ensure Python 3.10+ is installed
  • Delete venv folder and re-run setup
  • Check the log file: %APPDATA%\VideoSubtitleRemoverPro\vsr_pro.log

Log Files

  • GUI log panel (collapsible, click "Open Log File" for full log)
  • File log: %APPDATA%\VideoSubtitleRemoverPro\vsr_pro.log (5MB rotating)

Project Structure

VideoSubtitleRemover/
├── VideoSubtitleRemover.py   # Main GUI application
├── backend/
│   ├── __init__.py           # Module exports
│   └── processor.py          # Core processing (detection + inpainting)
├── setup.py                  # First-time environment setup
├── Run_VSR_Pro.bat           # Windows launcher
├── build_exe.bat             # PyInstaller build script
├── requirements.txt          # Python dependencies
├── .github/workflows/
│   └── build.yml             # CI/CD release workflow
├── assets/                   # Application assets
├── models/                   # AI model weights (auto-downloaded)
└── output/                   # Default output location

Credits

License

This project is licensed under the Apache License 2.0.


Video Subtitle Remover Pro -- Built by SysAdminDoc

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AI-powered Python GUI for removing hard-coded subtitles and text watermarks from videos using STTN, LAMA, and ProPainter inpainting with GPU acceleration.

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