Remove image background
Modern background removal uses a salient-object segmentation model (rembg / U²-Net family) to predict a per-pixel mask, then applies it as alpha.
What works well
- Single subject with clear silhouette (person, product on plain surface).
- Reasonable contrast against the background.
Where it struggles
- Hair wisps, glass, motion blur, transparent objects.
- Multiple overlapping subjects.
Try it: Remove background. PNG output with real transparency.