pmanot / papers Goto Github PK

struct TestCrop: View {
    let pdf = PDFDocument(url: URL(fileURLWithPath: Bundle.main.path(forResource: "9701_m20_qp_42", ofType: "pdf")!))!
    var body: some View {
        ScrollView {
            VStack {
                ForEach(1..<(pdf.pageCount - 1)){ i in
                    Image(cgImage: pdf.page(at: i)!.snapshot().cgImage!.cropping(to: CGRect(origin: CGPoint(x: 50, y: 0), size: CGSize(width: 100, height: 1000)))!)
                        .resizable()
                        .border(Color.black)
                        .scaleEffect(0.10, anchor: .center)
                        .scaledToFill()
                    
                }
            }
        }
    }
}

recognizeTextRequest.usesLanguageCorrection = false
recognizeTextRequest.customWords = Array(1..<10).map { "\($0)" }

func recogniseText(from image: CGImage) -> String {
    var recognizedText = ""
    let recognizeTextRequest = VNRecognizeTextRequest { (request, error) in
        guard error == nil else { return }
        
        guard let observations = request.results as? [VNRecognizedTextObservation] else { return }
        
        let maximumRecognitionCandidates = 1
        for observation in observations {
            guard let candidate = observation.topCandidates(maximumRecognitionCandidates).first else { continue }
            
            recognizedText = candidate.string
            
        }
    }
    recognizeTextRequest.recognitionLevel = .accurate
    recognizeTextRequest.usesLanguageCorrection = false
    recognizeTextRequest.customWords = Array(1..<10).map { "\($0)" }
    recognizeTextRequest.revision = VNRecognizeTextRequestRevision2
    
    let requestHandler = VNImageRequestHandler(cgImage: image, options: [:])
    try? requestHandler.perform([recognizeTextRequest])
    
    return recognizedText
}