Platform: RK3588 - Rockchip ISP 3 driver version: v02.09.00 - Debian Linux 6.1

Viewer used: https://github.com/IENT/YUView

• 1920x1200frame.nv12 - raw YUV full resolution greyscale ISP output

• 640x400frame.nv12 - 1/3 downsampled ISP output

• python_avg640x400.nv12 - 1/3 downsampled Python script output using pixel averaging (low-pass filter + decimation)

• python_skip640x400.nv12 - 1/3 downsampled Python script output using pixel skipping (decimation)

• nv12_downsample_avg.py - YUV pixel averaging script

• nv12_downsample_skip.py - YUV pixel skipping script

example usage: python nv12_downsample_skip.py input1920x1200.nv12 output640x400.nv12 requires numpy

YUV image captured through V4L2 --stream-to=frame.nv12