Imx8m plus board with android ISP can we get histogram per frame

[jignesh-0103]

Hello NXP experts,

We are using Imx8m plus board with android and we are using ISP for getting camera RGB data to YUV and also scaling.

Now from technical reference manual we came to know that ISP has capability to calculate histogram. So my question is that any way we can get this histogram calculation per frame ?

Thanks,

Jignesh

[Dhruvit]

Hi @jignesh-0103,

I hope you are doing well.

Detailed documentation for the histogram is not available.

However one can refer to below mentioned files in isp-imx for histogram-related APIs.

/isp-imx-4.2.2.21.0/vvcam/isp/isp_ioctl.h - contains ioctl calls related to the histogram.

/isp-imx-4.2.2.21.0/appshell/cam_app/source/Histogram/HistPlot.cpp

/isp-imx-4.2.2.21.0/units/test/src/engine/eng_parse.c

/isp-imx-4.2.2.21.0/units/cameric_drv/include/cameric_isp_hist_drv_api.h

Thanks & Regards,
Dhruvit Vasavada