Background Remover - Beeble Documentation
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Introducing Background Remover: Professional Grade AI Rotoscoping
Background Remover is available exclusively on Beeble (Cloud app). It is not available in Beeble Studio.
Background Remover extracts clean alpha mattes from your footage using AI, producing background-free results ready for compositing and VFX work. Upload a video, image sequence, or image, and the AI generates a precise foreground mask automatically.
For generating a full set of VFX passes (alpha, depth, normal, PBR maps), see VFX Pass Generator.
How It Works
Step 1: Choose Alpha Model
Select the AI model best suited for your footage:
| MatAnyone (default) | CorridorKey | |
|---|---|---|
| Purpose | Good for general background removal | Perfect green screen keys |
| Learn More | MatAnyone GitHub repository | CorridorKey demo on YouTube |
| How it works | Stage 1: Pick a keyframe and provide an alpha mask with our interactive masking tool. Stage 2: Propagate the alpha mask across all frames. |
Stage 1: MatAnyone generates an alpha hint for every frame. Stage 2: CorridorKey removes the green spill and refines the matte. |
Step 2: Upload Your Footage
Upload your footage to begin. Background Remover supports three source types:
- Video — MP4, MOV
- Image Sequence — Sequence of image frames
- Single Image — PNG, JPG
Step 3: Preview Frame (Optional)
A preview frame is extracted from your video with a rough alpha estimation generated on it, so you can review the overall quality before committing to full extraction.
Step 4: Refinement (Optional)
If the preview alpha needs adjustment, you can refine it interactively by clicking the Edit Alpha button in the Preview Dialog.
Skip Review mode — You can choose to Skip Review during upload, which bypasses the preview step (Steps 3–4) and runs full extraction immediately.
Step 5: Full Extraction
Once you approve the preview frame (or skip it), full extraction runs across all frames.
Step 6: Download Results
When extraction completes, download your results. You can also bulk download multiple completed results at once.
Specifications
These specifications are for Beeble (Cloud). Specifications may be updated as the platform evolves.
Upload Format
- Video
- Image Sequence
- Image
| Beeble (Cloud app) | |
|---|---|
| File Format | MP4 (H.264), MOV (ProRes 422, 4444, H.265) |
| Max Size | 2 GB |
| Resolution | Up to 2K (2048 px) - Downscaled if larger |
| Frame Count | Up to 3600 frames - e.g. 60s @ 60fps or 120s @ 30fps (Professional plan) |
| FPS | Up to 60 FPS - Reduced if higher |
| Color | Rec. 709 for best quality - Other color spaces, such as Log, may degrade quality |
| Beeble (Cloud app) | |
|---|---|
| File Format | PNG, JPG, JPEG |
| Max Size | 100 MB per file |
| Resolution | Up to 2K (2048 px) - Rejected if larger |
| Max Frames | Up to 2000 frames |
| Color | sRGB for best quality - Other color spaces, such as Log, may degrade quality |
Best Quality Settings - Use Rec. 709 / sRGB color space. Beeble (Cloud app) supports up to 2K and 3600 frames per video (60s @ 60fps).
Output Format
Background Remover produces two output types:
- RGBA — Background removed result with transparency applied.
- Alpha — Grayscale alpha matte (foreground mask).
| Format | Color Channels | Bit Depth | Color Space | Note |
|---|---|---|---|---|
| MOV | RGBA (4-ch) | 10-bit | sRGB | Alpha-embedded video for compositing |
| PNG Sequence | RGBA (4-ch) | 8-bit | sRGB | Frame-by-frame PNG with transparency |
| PNG | RGBA (4-ch) | 8-bit | sRGB | Single image with transparency |
The MOV output contains an embedded alpha channel, so you can drop it directly into After Effects, DaVinci Resolve, Final Cut Pro, or any editor that supports alpha video. No separate alpha matte needed.
| Format | Color Channels | Bit Depth | Color Space | Note |
|---|---|---|---|---|
| MOV | Grayscale (1-ch) | 8-bit | — | Grayscale matte |
| PNG Sequence | Grayscale (1-ch) | 8-bit | — | Grayscale matte |
| PNG | Grayscale (1-ch) | 8-bit | — | Grayscale matte |
Tips for Best Results
For the best alpha extraction results:
- Use footage with clear contrast between subject and background
- Ensure the subject is well-lit and in sharp focus
- Avoid footage with excessive motion blur
- Use high-resolution source material when possible
- For videos, review and refine the preview frame before running full extraction.