Why am I getting compile errors when deploying a matlab function that uses snapshot() from raspberry pi cameraboard together with deep learning?

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Miguel Dorado 2020-4-3

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评论： Reeno Joseph 2020-4-9

I have two sections in my function. First, it captures an image from the raspberry pi camera module. Deploying it on the hardware as standalone was successful. Then I added another set of code — using AlexNet to classify the captured image. After making the necessary changes in coder.DeepLearningConfig() (a new feature in MATLAB 2020a), this error came up during deployment:

error: cannot convert ‘uint64m_T*’ to ‘uint64_t’ for argument ‘1’ to ‘int EXT_CAMERABOARD_snapshot (uint64_t*, uint8_T8*, uint32_T*)’

recipe for target 'cameraboard.cpp.o' failed

It seems like there was a problem with compiling the cameraboard when using it with deep learning models. To check that there was really no problem with AlexNet, I tried deploying it without the cameraboard and it worked. Are there any fixes for this?

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Reeno Joseph 2020-4-6

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Hello Miguel,

This looks like a bug in the cpp codegen for cameraboard. We will fix this issue ASAP.

Meanwhile you can use webcam() API as a workaround.

-Reeno

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Miguel Dorado 2020-4-9

Reeno Joseph 2020-4-9

在 MATLAB Online 中打开

Please try the index to access webcam.

raspiObj = raspi();
cam      = webcam(raspiObj,0);

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