AI Video Matting · Interactive Object Tracking · Hair-Strand Alpha · Temporal Stabilization

Keep the subject & props.
Change or relight the world.

Interactive Click-to-Keep / Click-to-Remove spatial object prompting, closed-form color decontamination, motion-adaptive optical-flow alpha stabilization, studio ground shadows, custom background relighting, and Apple ProRes 4444 12-bit alpha export.

11.25 credits/sec (2× cheaper than Bria) Free Scene & Object Analysis (0 credits) Auto Mobile VFR / HDR / 4K Normalization Preview MP4 + 8-Bit Alpha + VP9 WebM + ProRes 4444 (.mov)

1. Source Video & Account

or select a video file below (mobile VFR & HDR auto-normalized)

Up to 512 MB · up to 5 minutes · audio & frame timing preserved

2. Object Selection (Text + Click/Box Prompts)

Spatial prompts: 0 keep points, 0 remove points, 0 boxes. Use "Analyze Video" above to click directly on the video frame.

3. Background & Studio Relighting

4. Pro Edge, Optical-Flow & NLE Matte Controls

Choose a video for an exact credit estimate.

Connect API Key

Stored in your browser tab. Or sign in to PixelAPI Studio.

Interactive Object Picker & Studio Preview

ORIGINAL SOURCEUnmodified
Drop a video on the left to inspect timing, resolution, and scene objects.
STUDIO COMPOSITE PREVIEWH.264 + Audio
Your processed studio composite will play here with frame-locked audio.
Ready when you are

Free object analysis takes ~2 seconds. Full matting exports 4 deliverables: Preview MP4, 8-bit Alpha Matte MP4, Transparent VP9 WebM, and 12-bit Apple ProRes 4444 (.mov).

Pricing, Architecture & Privacy

11.25 credits per output second ($0.01125/s — 2× cheaper than Bria Video RMBG at $0.0225/s); 5-second minimum (56.25 credits). Scene & object analysis (`/v1/video-bgremove/analyze`) is completely free (0 credits).

6 Studio Advantages: (1) Interactive Click-to-Keep / Click-to-Remove spatial point & box prompting, (2) Closed-form foreground color decontamination & green/blue despill, (3) Motion-adaptive hair-strand edge refinement + flow-warped temporal alpha stabilization, (4) Studio infinity-cove ground contact shadow & gloss floor reflection, (5) Custom image/video background plate compositing with ambient relighting & optical bokeh, and (6) Native 12-bit Apple ProRes 4444 `.mov` + 16-bit OpenEXR sequence output.

All outputs are private, account-bound, and retained for 7 days. Failed or cancelled jobs automatically refund 100% of reserved credits.

Product Walkthrough & Showcase

See PixelAPI Video Background Studio in Action

Watch how mobile VFR clips, multi-object scenes, fine hair edges, studio floor reflections, custom relit background plates, Apple ProRes 4444, and 16-bit OpenEXR VFX sequences are processed end-to-end.

Multi-Object Spatial Tracking Sub-Pixel Hair-Strand Alpha Closed-Form Color Unmixing 12-Bit ProRes 4444 & 16-Bit EXR

Read the step-by-step tutorial & NLE workflow guide →

REST API Reference (Analyze, Direct Multipart, Resumable Chunked Upload & 16-Bit EXR) 
# 1. Free Scene & Object Analysis (0 Credits)
curl -X POST https://api.pixelapi.dev/v1/video-bgremove/analyze \
  -H "Authorization: Bearer $PIXELAPI_KEY" \
  -F "[email protected]"

# 2. Submit Video Background Removal with Text + Point/Box Prompts & Studio Controls
curl -X POST https://api.pixelapi.dev/v1/video-bgremove \
  -H "Authorization: Bearer $PIXELAPI_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -F "[email protected]" \
  -F "background=studio_white_gloss" \
  -F "keep_prompt=person, dog, product" \
  -F "remove_prompt=chair, tripod" \
  -F 'keep_points=[[0.52, 0.44]]' \
  -F 'remove_points=[[0.18, 0.75]]' \
  -F "decontaminate=true" \
  -F "despill_strength=0.85" \
  -F "motion_adaptive_trimap=true" \
  -F "temporal_stabilize=true" \
  -F "matte_choke=0.0" \
  -F "edge_feather=0.5" \
  -F "alpha_mode=straight" \
  -F "shadow_strength=0.55" \
  -F "reflection_strength=0.28" \
  -F "max_credits=150"

# 3. Poll Job & Get Signed Download Links (Preview MP4, 8-Bit Alpha, VP9 WebM, ProRes 4444 .mov)
curl -H "Authorization: Bearer $PIXELAPI_KEY" https://api.pixelapi.dev/v1/video-bgremove/jobs/{job_id}
curl -X POST -H "Authorization: Bearer $PIXELAPI_KEY" https://api.pixelapi.dev/v1/video-bgremove/jobs/{job_id}/download-links