In Isaac sim image dataset generation how can I configure the image size (height and width)

I am able to generate the images from custom fbx using below command

./start_data_generation.sh --datadir=$DATA_DIR --samples=$TRAINING_SAMPLES --tests=$TRAINING_TESTS
But the images which are generating are in different size than what I expected.

I want to know how can I configure that setting inside the ./start_data_generation.sh