From our testings we believe the raw format is based on a 4:2:2 packed pixel, hence 8bit.
From OV7725, it should be possible to receive each pixel as RGB565, or 16bit pixel depth.
Is this possible within the current version (mine is 1.9.0) of OpenMV IDE ?
Speed is not the top priority, but the more information we could extract from a capture.
If we could save to disc 1 image per second, that would be interesting.