Draw Lines or Region of Interest on Each frame

muhammadabdullah34907 · August 19, 2020, 1:18pm

I want to draw the lines or regions on the frames which i am getting from live stream or video. I am not sure if this is possible through OSD in configurations or directly using python script. Please help.
Below is the python test-1 application which i am trying to use.

github.com

NVIDIA-AI-IOT/deepstream_python_apps/blob/master/notebooks/deepstream_test_1.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "Deepstream Test1 description\n",
    "--------------------------------------------------------------------------------------\n",
    "\n",
    "This sample creates instance of \"nvinfer\" element. Instance of\n",
    "the \"nvinfer\" uses TensorRT API to execute inferencing on a model. Using a\n",
    "correct configuration for a nvinfer element instance is therefore very\n",
    "important as considerable behaviors of the instance are parameterized\n",
    "through these configs.\n",
    "\n",
    "For reference, here are the config files used for this sample :\n",
    "The 4-class detector (referred to as pgie in this sample) uses\n",
    "    dstest1_pgie_config.txt\n",
    "\n",
    "In this sample, we first create one instance of \"nvinfer\", referred as the pgie.\n",

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P.S: I have no issues running the deepstream, everything is running fine.

miguel.taylor · August 19, 2020, 4:42pm

Hi,
You can add display meta to the buffer and nvdsosd will draw it. I have done it only on C, but I know it must be possible with python. Just probe the buffer somewhere after the stream mux and add the custom overlay.

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