imagenet-console.py

#!/usr/bin/python
#
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import jetson.inference
import jetson.utils

import argparse
import sys


# parse the command line
parser = argparse.ArgumentParser(description="Classify an image using an image recognition DNN.", 
						   formatter_class=argparse.RawTextHelpFormatter, epilog=jetson.inference.imageNet.Usage())

parser.add_argument("file_in", type=str, help="filename of the input image to process")
parser.add_argument("file_out", type=str, default=None, nargs='?', help="filename of the output image to save")
parser.add_argument("--network", type=str, default="googlenet", help="pre-trained model to load, see below for options")
parser.add_argument("--profile", type=bool, default=False, help="enable performance profiling and multiple runs of the model")
parser.add_argument("--runs", type=int, default=15, help="if profiling is enabling, the number of iterations to run")

try:
	opt, argv = parser.parse_known_args()
except:
	print("")
	parser.print_help()
	sys.exit(0)


# load an image (into shared CPU/GPU memory)
img, width, height = jetson.utils.loadImageRGBA(opt.file_in)

# load the recognition network
net = jetson.inference.imageNet(opt.network, argv)

# enable model profiling
if opt.profile is True:
	net.EnableLayerProfiler()
else:
	opt.runs = 1

# run model inference
for i in range(opt.runs):
	if opt.runs > 1:
		print("\n/////////////////////////////////////\n// RUN {:d}\n/////////////////////////////////////".format(i))
	
	# classify the image
	class_idx, confidence = net.Classify(img, width, height)

	# find the object description
	class_desc = net.GetClassDesc(class_idx)

	# print out the result
	print("image is recognized as '{:s}' (class #{:d}) with {:f}% confidence\n".format(class_desc, class_idx, confidence * 100))
	
	# print out timing info
	net.PrintProfilerTimes()

# overlay the result on the image
if opt.file_out is not None:
	font = jetson.utils.cudaFont(size=jetson.utils.adaptFontSize(width))	
	font.OverlayText(img, width, height, "{:f}% {:s}".format(confidence * 100, class_desc), 10, 10, font.White, font.Gray40)
	jetson.utils.cudaDeviceSynchronize()
	jetson.utils.saveImageRGBA(opt.file_out, img, width, height)