I'm currently working on a ML project with the HoloLens 1 and aiming to process a video taken by the front camera. Therefore I need to access the camera data from my c# Unity project. I assume there must be a way to store this in some data type(Tensor/Array/...).
I found several ways to store videos or pictures directly to the disc but none for directly using the data in my program. There might be a possibility to firstly save the video to the disc and afterwards access the saved data from my program, but that seems quite computing-intensive.
Do you have any suggestions how to make the data of the images available in the program?
You can definitely save the picture frame to memory, you can start with PhotoCapture class to capture the picture and stored as a variable. Please refer to this link to learn more about how to use it: UnityEngine.Windows.WebCam.PhotoCapture.
And the key point is when you call the async method TakePhotoAsync(onCapturedPhotoToMemoryCallback), you need to pass in a function as a parameter, it will be invoked once the photo has been stored to memory. And in this function, you will get an PhotoCaputrerFrame instance as a parameter that contains the image captured from the camera.