simaaisoftmax2d
===============

This is a custom plugin that applies the Softmax function on a 2D vector, typically used in semantic segmentation or classification tasks. Reshape to 2D by reshaping to (data_len, num_classs) and apply softmax by reshaping back to 1D.

out_sz = data_len \* num_classes \* 4 (float size)

To build the plugin use:

::

   source /opt/poky/4.0.10/environment-setup-cortexa65-poky-linux
   mkdir build && cd build && cmake .. && make

Installation
~~~~~~~~~~~~

- Yocto SDK installed.

::

   scp libgstsimaaisoftmax2d.so sima@<IP address of DaVinci board>:/data/my_pipeline/libs

Usage
-----

::

   GST_DEBUG=3 gst-launch-1.0 simaaisrc location=<input_file> delay=1000 ! simaaisoftmax2d config=config.json ! fakesink

Configuration
-------------

::

   {
       "version" : 0.1,
       "node_name" : "softmax2d",
       "simaai__params" : {
         "params" : 3,
         "cpu" : 0,
         "next_cpu" : 0,
         "out_sz" : 36800,
         "no_of_outbuf" : 5,
         "data_len" : 100,
         "num_classes" : 92,
         "debug" : 0,
         "dump_data" : 0
       }
     }