01 / 02
A soft alpha matte
Not a hard cut but a matte from 0 to 1: hair and translucent edges stay natural.
05№ 05
radius
Backgrounds removed on your Mac, nothing uploaded.
- Status
- In development
- Platform
- macOS
Item 05 · radius
radius is local background removal for macOS. It runs BiRefNet HR-matting converted to Core ML: a 2048×2048 image in, a soft-edged alpha matte out. In development; the models are already published.
Who it’s forDesigners and anyone cutting objects out of photos.
What it does
02 / 02
On-device only
Core ML in fp16 with normalisation and sigmoid baked in — the photo never leaves your Mac.
How it works
-
01
Open a photo.
-
02
The model builds a 2048×2048 alpha matte.
-
03
Save a PNG with a transparent background.
FAQ
Which model is inside?
BiRefNet HR-matting (MIT), converted to Core ML with coremltools 9.
When does the app ship?
Still in development. The models are already in a public repository.
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