Only useful if a microcontroller peripheral doesn't already exist for the thing you want to do and you have some sub-millisecond latency requirements. If a calc

Only useful if a microcontroller peripheral doesn't already exist for the thing you want to do and you have some sub-millisecond latency requirements. If a calculation can be vectorized a CPU or GPU is really fast. At normal speeds, an image can take 10-15 ms to clock out of the sensor. At that point, there's little reason not to run your image processing on a $3 CPU rather than $$$ FPGA because what's another < 30ms at that point and what would need a reaction that quick anyway?