No, the tlt-converter will not do that.
Please refer to How to run tlt-converter
For example, when you train a trafficCamnet model by setting below in the training spec,
output_image_width: 960 output_image_height: 544 output_image_channel: 3
then please set -d 3,544,960 -i nchw
in the command line of tlt-converter.