public async Task <float[]> Classify(object image)
{
PreprocessTime = TimeSpan.FromTicks(0);
var startInferTime = DateTimeOffset.UtcNow;
var multiarr = await NNHelpers.PlayMN(_VNMLModel, image as CVPixelBuffer);
InferenceTime = DateTimeOffset.UtcNow - startInferTime;
// ------------------------------------------- //
var startPostprocessTime = DateTimeOffset.UtcNow;
double[] newfloat = new double[_outSize];
Marshal.Copy(multiarr.DataPointer, newfloat, 0, newfloat.Length);
multiarr.Dispose();
var probs = newfloat.Select(x => (float)x).ToArray();
PostprocessTime = DateTimeOffset.UtcNow - startPostprocessTime;
// ------------------------------------------- //
return(probs);
}
public byte[] ToJpegBytes(FrameEntry frame)
{
var cvBuffer = NNHelpers.ToCVPixelBuffer(frame);
cvBuffer.ToCGImage(out CGImage image);
cvBuffer.Dispose();
return(UIImage.FromImage(image).AsJPEG().ToArray());
}
public object ToNativeImage(FrameEntry frame)
{
return(NNHelpers.ToCVPixelBuffer(frame));
}