Anonify - Video Anonymizer

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Anonify is a desktop application that automatically anonymizes people in videos by blurring their faces or full bodies. It uses AI-powered person detection with temporal masking to create smooth, consistent anonymization across video frames.

Caution

You should ALWAYS double-check the resulting video for faces. AI is not perfect.

Features

• Smart Detection: Uses YOLO11n AI model for accurate person detection
• Head or Full Body: Choose between anonymizing just heads or entire bodies
• Temporal Masking: Analyzes 5 frames at once for smooth, consistent blurring
• Temporal Jitter: Randomized blur kernels to resist AI-based deblurring
• Audio Preservation: Keeps original audio intact
• Easy to Use: Simple GUI interface with drag-and-drop support

GUI Usage

Getting Started

1. Launch the Application: Double-click the Anonify executable to start the GUI
2. The main window will appear with a simple interface

Basic Workflow

1. Select Input Video

Click the Browse button next to the input field and select the video file you want to anonymize. Supported formats include:

• MP4
• AVI
• MOV
• And other common video formats

2. Choose Anonymization Options

Detection Rate

• Adjusts the sensitivity of person detection (0-100, default: 75)
• Higher values increase detection sensitivity, catching more people but may slow processing
• Lower values are faster but may miss people, especially distant or partially visible
• Use the slider to find the right balance for your video

Anonymize full body instead of just head (Optional)

• By default, Anonify blurs only the head area of detected people
• Check this box to blur entire bodies instead
• Use this for higher privacy requirements

Disable Union Masking (over 5 frames) (Optional)

• By default, Anonify analyzes 5 consecutive frames to create smooth, consistent masks
• Check this box to disable temporal smoothing (faster but may have flickering)
• Leave unchecked for best quality results

3. Set Output Directory

Click the Browse button next to output-dir to choose where the anonymized video will be saved:

• Default location: outputs folder next to the executable
• The output filename will be automatically generated as anon-XXXXXX.mp4 (where XXXXXX is a random ID)

4. Process the Video

Click the Start button to begin processing. You'll see:

• A progress bar showing the current frame being processed
• Time remaining estimate
• The application will process each frame, applying blur to detected people

5. Completion

When processing is complete:

• You'll see "Done." message
• Find your anonymized video in the output directory
• The original video remains unchanged

Tips

• Processing Time: Videos take time to process (approximately 1-5 seconds per frame depending on your computer)
• Quality Settings: Keep temporal masking enabled for best results
• File Size: Output videos are saved in H.264 format with good compression
• Privacy: Head-only mode is sufficient for most privacy needs; full-body mode is more aggressive

Troubleshooting

Video processing fails

• Ensure the input video file is not corrupted
• Check that you have write permissions to the output directory
• Make sure you have enough disk space for the output file

Blur quality issues

• Enable temporal masking for smoother results
• Use full-body mode if faces are not detected reliably

System Requirements

• Windows 10 or later
• Sufficient RAM for video processing (4GB+ recommended)
• Storage space for output videos

Privacy Note

Anonify processes videos locally on your computer. No data is sent to external servers. The AI model (YOLO11n) runs entirely offline.

Attribution

Icon source: Flaticon