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PiperOrigin-RevId: 490053179
This commit is contained in:
MediaPipe Team 2022-11-21 13:04:53 -08:00 committed by Copybara-Service
parent 7f0134eecb
commit 652423a23d
1 changed files with 7 additions and 3 deletions
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10
mediapipe/calculators/tensor/image_to_tensor_utils.cc
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@ -253,11 +253,15 @@ int GetNumOutputChannels(const mediapipe::Image& image) {
}
#endif // MEDIAPIPE_METAL_ENABLED
#endif // !MEDIAPIPE_DISABLE_GPU
// The output tensor channel is 1 for the input image with 1 channel; And the
// output tensor channels is 3 for the input image with 3 or 4 channels.
// TODO: Add a unittest here to test the behavior on GPU, i.e.
// failure.
return image.channels() == 1 ? 1 : 3;
// Only output channel == 1 when running on CPU and the input image channel
// is 1. Ideally, we want to also support GPU for output channel == 1. But
// setting this on the safer side to prevent unintentional failure.
if (!image.UsesGpu() && image.channels() == 1) {
return 1;
}
return 3;
}
absl::StatusOr<std::shared_ptr<const mediapipe::Image>> GetInputImage(