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import argparse
import numpy as np
import cv2 as cv
from mobilenet import MobileNet
def str2bool(v):
if v.lower() in ['on', 'yes', 'true', 'y', 't']:
return True
elif v.lower() in ['off', 'no', 'false', 'n', 'f']:
return False
else:
raise NotImplementedError
backends = [cv.dnn.DNN_BACKEND_OPENCV, cv.dnn.DNN_BACKEND_CUDA]
targets = [cv.dnn.DNN_TARGET_CPU, cv.dnn.DNN_TARGET_CUDA, cv.dnn.DNN_TARGET_CUDA_FP16]
help_msg_backends = "Choose one of the computation backends: {:d}: OpenCV implementation (default); {:d}: CUDA"
help_msg_targets = "Chose one of the target computation devices: {:d}: CPU (default); {:d}: CUDA; {:d}: CUDA fp16"
try:
backends += [cv.dnn.DNN_BACKEND_TIMVX]
targets += [cv.dnn.DNN_TARGET_NPU]
help_msg_backends += "; {:d}: TIMVX"
help_msg_targets += "; {:d}: NPU"
except:
print('This version of OpenCV does not support TIM-VX and NPU. Visit https://github.com/opencv/opencv/wiki/TIM-VX-Backend-For-Running-OpenCV-On-NPU for more information.')
all_mobilenets = [
'image_classification_mobilenetv1_2022apr.onnx',
'image_classification_mobilenetv2_2022apr.onnx',
'image_classification_mobilenetv1_2022apr-int8-quantized.onnx',
'image_classification_mobilenetv2_2022apr-int8-quantized.onnx'
]
parser = argparse.ArgumentParser(description='Demo for MobileNet V1 & V2.')
parser.add_argument('--input', '-i', type=str, help='Usage: Set input path to a certain image, omit if using camera.')
parser.add_argument('--model', '-m', type=str, choices=all_mobilenets, default=all_mobilenets[0], help='Usage: Set model type, defaults to image_classification_mobilenetv1_2022apr.onnx (v1).')
parser.add_argument('--backend', '-b', type=int, default=backends[0], help=help_msg_backends.format(*backends))
parser.add_argument('--target', '-t', type=int, default=targets[0], help=help_msg_targets.format(*targets))
args = parser.parse_args()
if __name__ == '__main__':
# Instantiate MobileNet
model = MobileNet(modelPath=args.model, backendId=args.backend, targetId=args.target)
# Read image and get a 224x224 crop from a 256x256 resized
image = cv.imread(args.input)
image = cv.cvtColor(image, cv.COLOR_BGR2RGB)
image = cv.resize(image, dsize=(256, 256))
image = image[16:240, 16:240, :]
# Inference
result = model.infer(image)
# Print result
print('label: {}'.format(result))
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