Question

由于某些原因，从CaptureOutput获取CIImage之后，像这样：

guard let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else { return }
let ciImage = CIImage(cvPixelBuffer: imageBuffer)
self.inputImage = ciImage
let handler = VNImageRequestHandler(ciImage: ciImage, orientation: .right)
DispatchQueue.global(qos: .userInteractive).async {
do {
    try handler.perform([self.rectanglesRequest])
} catch {
    print(error)
}

然后，在另一个函数中将其转换为UIIImage：

imageView.image = UIImage(ciImage: self.inputImage, scale: 1, orientation: .right)

我仍然看到图像在imageView中向左旋转。我究竟做错了什么？谢谢！

Answer 1

我个人确实记得遇到过这样的问题，最终改变了图像的方向。不确定为什么会这样。

但是请尝试一下，如果可能的话请调整代码以匹配您的代码。

 func photoOutput(_ captureOutput: AVCapturePhotoOutput, didFinishProcessingPhoto photoSampleBuffer: CMSampleBuffer?, previewPhoto previewPhotoSampleBuffer: CMSampleBuffer?, resolvedSettings: AVCaptureResolvedPhotoSettings, bracketSettings: AVCaptureBracketedStillImageSettings?, error: Error?) {

    guard error == nil else { return }

    if let sampleBuffer = photoSampleBuffer, let previewBuffer = previewPhotoSampleBuffer, let dataImage = AVCapturePhotoOutput.jpegPhotoDataRepresentation(forJPEGSampleBuffer: sampleBuffer, previewPhotoSampleBuffer: previewBuffer) {

        guard let capturedImage = UIImage(data: dataImage) else { return }

        setThumbnail(image: capturedImage) // Set image as a thumbnail
        addCaptured(image: capturedImage) // Add capture image into image collection 

    } else {
        // print("Error: Failed to present data image.")
    }
}

从CaptureOutput获取后，CIImage方向向左旋转

1 个答案: