metadata
license: other
license_name: bria-rmbg-1.4
license_link: https://huggingface.co/briaai/RMBG-1.4
library_name: coreml
pipeline_tag: image-segmentation
base_model: briaai/RMBG-1.4
base_model_relation: quantized
tags:
- coreml
- core-ml
- ios
- macos
- apple
- on-device
- background-removal
- salient-object-detection
RMBG-1.4 — Core ML
BRIA AI, 2023
High-quality background removal. Outputs foreground with alpha mask. 1024×1024 input.
Core ML conversion of briaai/RMBG-1.4 for on-device inference on iPhone, iPad and Mac. Converted with coremltools; the packages are stateless, so all sequencing and buffering lives in your Swift code.
| Task | image segmentation |
| Upstream | briaai/RMBG-1.4 |
| Packages | 1 |
| Download size | 37 MB |
| Minimum iOS | 17.0 |
| Peak RAM | ~300 MB |
Files
| File | Size | Compute units | SHA-256 |
|---|---|---|---|
RMBG_1_4.mlpackage.zip |
37 MB | cpuOnly |
a80dbb5f04c922a8… |
| Total | 37 MB |
compute_units is not a suggestion -- it is the configuration the conversion was verified against. Moving a package to a different compute unit can silently change the numerics (FP16 attention overflow) or crash on the GPU.
Download
hf download mlboydaisuke/coreml-zoo --include "rmbg/*" --local-dir ./rmbg_1_4
unzip './rmbg_1_4/rmbg/*.zip' -d ./rmbg_1_4
Use in Swift
import CoreML
let config = MLModelConfiguration()
config.computeUnits = .cpuOnly // as converted — see the table above
// Unzip the .mlpackage, drop it into your Xcode target and Xcode compiles it
// at build time:
let model = try RMBG_1_4(configuration: config)
// ...or compile a downloaded .mlpackage at runtime:
let compiled = try await MLModel.compileModel(at: mlpackageURL)
let model = try MLModel(contentsOf: compiled, configuration: config)
Demo
- Sample app —
sample_apps/RMBGDemo, a standalone SwiftUI project. - Models Zoo — this model is downloadable and runnable inside the Models Zoo app on the App Store, no build required.
Conversion
- Script:
convert_rmbg.py - Pitfalls hit during conversion (FP16 overflow, ANE buffer limits, stride handling):
docs/coreml_conversion_notes.md - Model index: CoreML-Models
License
The conversion inherits the upstream license: Bria RMBG-1.4 License. See https://huggingface.co/briaai/RMBG-1.4.
Non-commercial without a separate agreement with Bria.
Credits
- Upstream authors: briaai/RMBG-1.4, 2023
- Core ML conversion: john-rocky (Daisuke Majima)