Public edition prepared 2026-09-12. Personal/account/contact details are visibly redacted where present. The original SHA256 identifies the captured unredacted full file, not this redacted extract. PUBLIC-SHA256SUMS.txt identifies downloadable public files. This material is not a signed declaration or proof of an Apple-received Build.

# S15  On-device portrait segmentation

Project key: photo
Original relative path: IDPhotoStudio/ImageProcessor.swift
Captured: 2026-09-12T18:57:15+08:00
Original full-file SHA256: 94629b3fd94a9dd83c4216ac3d42c3e7010184c9ea74f7be281c0a994807a6f8
Evidence level: local source excerpt
Build correspondence: not yet established with an Apple-received binary.
Line numbers refer to the captured original file. Gaps are explicitly marked. No source code was changed.

## Original lines 978 to 998

```text
0978          return (minimum.outputImage ?? mask).cropped(to: mask.extent)
0979      }
0980  
0981      private static func removeBackgroundWithPersonSegmentation(
0982          from image: CGImage,
0983          faceBounds: CGRect?
0984      ) throws -> CGImage {
0985          let request = VNGeneratePersonSegmentationRequest()
0986          request.qualityLevel = .accurate
0987          request.outputPixelFormat = kCVPixelFormatType_OneComponent8
0988          let handler = VNImageRequestHandler(cgImage: image, orientation: .up)
0989          try handler.perform([request])
0990          guard let buffer = request.results?.first?.pixelBuffer else { throw ProcessingError.noSubject }
0991  
0992          let source = CIImage(cgImage: image)
0993          let rawMask = CIImage(cvPixelBuffer: buffer)
0994          var mask = rawMask.transformed(by: CGAffineTransform(
0995              scaleX: source.extent.width / rawMask.extent.width,
0996              y: source.extent.height / rawMask.extent.height
0997          ))
0998          mask = closingDocumentPortraitGaps(
```