runVisionRequest-image-segmentation.swift

func runVisionRequest() {
        
        guard let model = try? VNCoreMLModel(for: DeepLabV3(configuration: .init()).model)
        else { return }
        
        let request = VNCoreMLRequest(model: model, completionHandler: visionRequestDidComplete)
        request.imageCropAndScaleOption = .scaleFill
        DispatchQueue.global().async {

            let handler = VNImageRequestHandler(cgImage: inputImage.cgImage!, options: [:])
            
            do {
                try handler.perform([request])
            }catch {
                print(error)
            }
        }
    }