VincentGOURBIN/RealESRGAN-CoreML

Real-ESRGAN CoreML

CoreML conversion of xinntao/Real-ESRGAN (RealESRGAN_x4plus) for use in macOS/iOS apps.

Model

• Architecture: RRDBNet (23 RRDB blocks, 64 features, 32 growth channels)
• Scale: 4x upscaling
• Precision: Float16
• Input: (1, 3, 256, 256) — RGB normalized [0, 1]
• Output: (1, 3, 1024, 1024) — RGB [0, 1]
• Size: ~33 MB (mlpackage), ~30 MB (zip)
• Target: macOS 15+

Usage

Download RealESRGAN-x4plus.mlpackage.zip, unzip, then compile:

let compiledURL = try MLModel.compileModel(at: mlpackageURL)
let model = try MLModel(contentsOf: compiledURL)

For images larger than 256x256, use tile-based processing with overlap padding.

License

BSD-3-Clause (same as original Real-ESRGAN)

Credits

• Original model: xinntao/Real-ESRGAN
• Converted for Fluxforge Studio