When I use VNGenerateForegroundInstanceMaskRequest to generate the mask in the simulator by SwiftUI, there is an error "Could not create inference context".
Then I add the code to make the vision by CPU:
let request = VNGenerateForegroundInstanceMaskRequest()
let handler = VNImageRequestHandler(ciImage: inputImage)
#if targetEnvironment(simulator)
if #available(iOS 18.0, *) {
let allDevices = MLComputeDevice.allComputeDevices
for device in allDevices {
if(device.description.contains("MLCPUComputeDevice")){
request.setComputeDevice(.some(device), for: .main)
break
}
}
} else {
// Fallback on earlier versions
request.usesCPUOnly = true
}
#endif
do {
try handler.perform([request])
if let result = request.results?.first {
let mask = try result.generateScaledMaskForImage(forInstances: result.allInstances, from: handler)
return CIImage(cvPixelBuffer: mask)
}
} catch {
print(error)
}
Even I force the simulator to run the code by CPU, but it still have the error: "Could not create inference context"
tju_qihui_jia
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