Image capture other than getSnapshot

Is there any other way to capture an image other than using the getSnapshot method? There is a processing overhead in the conversion from the byte array returned by the getSnapshot to an Image type. Is there a way to access the camera buffer? I need to get a frame from the video seen by the camera. Do some manipulation and then print it on screen. I need to do a series of this process of capture, manipulate, then show to imitate a real-time video. Can anyone help me please?
PS
What information does the byte array contain? Is it the RGB data of the image but in byte and not in int? Is there a way to get the RGB data from the byte array so I can bypass the conversion to Image type?

hi,
i have to do the same thing. Have you found a solution. Would be really thankful.
br0kera

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