Image alignment with Vision

You can use it for panoramic images and scene stabilization.

procedure

let request = VNTranslationalImageRegistrationRequest(targetedCIImage: image2, options: [:])
let handler = VNImageRequestHandler(ciImage: image1, options: [:])
do {
try handler.perform([request])
} catch let error {
print(error)
}
guard let observation = request.results?.first as? VNImageTranslationAlignmentObservation else { return }
let alignmentTransform = observation.alignmentTransform
image2 = image2.transformed(by: alignmentTransform)
let compositedImage = image1.applyingFilter("CIAdditionCompositing", parameters: ["inputBackgroundImage": image2])

important point

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