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Create Videos with AI-Generated Backgrounds using Gemini and VideoBGRemover

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Created by: Paul Roussel || paul

Paul Roussel

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Last update 2 days ago

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Automated workflow that generates custom AI image backgrounds from text prompts using Gemini's Nano Banana (native image generation), removes video backgrounds, and composites videos on AI-generated scenes. Create any background you can imagine without needing stock images.

How it works

• Describe background: Provide video URL and text prompt describing desired background scene (e.g., "modern office with city skyline at golden hour")
• AI generates image: Gemini creates a background image from your prompt in ~10-20 seconds
• Upload to Drive: Generated background is saved to Google Drive and made publicly accessible
• Remove & composite: Video background is removed and composited on AI-generated scene with centered template
• Save final video: Completed video is uploaded to Google Drive with shareable link

Set up steps

⏱️ Total setup time: ~5 minutes

• Get Gemini API Key (~1 min): Visit https://aistudio.google.com/apikey, create new API key, add to n8n Settings → Variables as GEMINI_KEY
• Get VideoBGRemover API Key (~2 min): Visit https://videobgremover.com/n8n, sign up, add to n8n as VIDEOBGREMOVER_KEY
• Connect Google Drive (~2 min): Click "Save Background Image to Drive" node, click "Connect", authorize n8n

Use cases:

  • Marketing videos with custom branded environments tailored to your message
  • Product demos with unique AI-generated backgrounds that match your product aesthetic
  • Social media content with creative scenes you can't find in stock libraries
  • AI avatars placed in AI-generated worlds
  • Presentations with custom backgrounds generated for specific topics
  • A/B testing different background variations for the same video

Pricing:

  • Gemini: ~$0.03 per generated image
  • VideoBGRemover: $0.50-$2.00 per minute of video
  • Total: ~$0.53-$2.03 per video

Triggers: Webhook (for automation) or Manual (for testing)

Processing time: Typically 5-7 minutes total

Prompt tips: Be descriptive and specific. Instead of "office," try: "A modern minimalist office with floor-to-ceiling windows overlooking a city skyline at golden hour. Warm sunlight, polished concrete floors, sleek wooden desks, green plants."