🎬 AI Video Watermark Remover

How to Use:

1. Upload Video: Click to upload or drag & drop your video
2. Choose Method:
   • ✅ Auto-detect: For solid, bright watermarks (logos, timestamps)
   • 📝 Manual mask: For complex or semi-transparent watermarks
3. Adjust Settings:
   • Increase threshold if detecting too much
   • Decrease threshold if missing watermark
4. Process: Click the button and wait

Best Practices:

• Solid watermarks: Use auto-detect with high threshold (200-240)
• Faint watermarks: Lower threshold (150-180)
• Complex watermarks: Create a manual mask in any image editor
• Temporal consistency: Keep ON for videos with static watermarks

Inpainting Methods:

• Telea: Fast, good for most cases
• Navier-Stokes (NS): Slower but better quality for complex textures

Creating Manual Masks:

1. Take a screenshot from your video
2. Open in any image editor (Paint, Photoshop, GIMP)
3. Paint the watermark area WHITE
4. Keep everything else BLACK
5. Save as PNG/JPG and upload

Limitations:

• Moving watermarks are harder to remove
• Very large watermarks may leave artifacts
• Processing time increases with video length

Algorithm Details:

This app uses:

• Edge detection: Finds watermark boundaries
• Corner detection: Identifies logo corners
• Brightness analysis: Detects bright/dark watermarks
• OpenCV inpainting: Fills detected regions
• Temporal analysis: Uses multiple frames for consistency

Algorithms Used:

1. Watermark Detection:

   • Canny edge detection
   • Harris corner detection
   • Brightness thresholding
   • Morphological operations

2. Inpainting:

   • Telea algorithm (Fast Marching Method)
   • Navier-Stokes based method

3. Temporal Consistency:

   • Cross-frame mask refinement
   • Persistent region detection

For Better Results:

For production use, consider deep learning models:

• ProPainter (ICCV 2023) - State-of-the-art
• E2FGVI (CVPR 2022) - Fast and efficient
• DiffuEraser (2025) - Diffusion-based

References:

• ProPainter Paper
• Video Inpainting Survey
• OpenCV Inpainting Docs