SOURCE RECORD · S15

S15 · 照片制作

On-device portrait segmentation

公开摘录 · 截取原件于 2026-09-12 / Captured 2026-09-12

对应 App / App evidence 下载公开摘录 / Download TXT 证据范围 / Provenance

保留原行号。个人／账户信息如有删除，已用 REDACTED 标识。原文件 SHA-256 只用于识别截取时的本机原文件；不能证明编写或提交时间，也不等于脱敏下载文件的哈希。

Original line numbers are retained. Redactions are explicitly marked. The original full-file hash identifies a captured local file, not its creation/submission time or the redacted download. Public-file hashes are listed separately. This is selected source, not a whole-repository or binary absence finding.

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

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(