Argus,Open CV,RGB image

Robotics & Edge Computing Jetson & Embedded Systems Jetson AGX Xavier
1

Hi,

I am trying to get an RGB image on my Qt window using Argus.

int fd = iNativeBuffer->createNvBuffer(iEglOutputStreams[0]->getResolution(), NvBufferColorFormat_YUV420, NvBufferLayout_Pitch);

void *pdata = NULL;

NvBufferParams params;

NvBufferGetParams(fd, &params);

NvBufferMemMap(fd, 0, NvBufferMem_Read, &pdata);

NvBufferMemSyncForCpu(fd, 0, &pdata);

I followed the above steps but it only results in getting the Y component of the YUV420 image on my window and looks to be a grayscale.I am aware of using Open Cv to perform the conversion to RGB but it takes 3 milli seconds and won’t fit our optimisation goals.

Can proper guidance be given to get the RGB image from the createNvBuffer() function as I am aware of the Color format NvBufferColorFormat_ARGB32 but I am not able to use it properly as the appropriate step should be given in the OpenCV Mat or the QImage to get the proper image.

Thanks in Advance!

3

Have reference to /usr/src/jetson_multimedia_api/samples/unittest_samples/transform_unit_sample this sample code.

Also reference to below topic.

5

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