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"""Exports a pytorch *.pt model to *.torchscript format |
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Usage: |
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$ export PYTHONPATH="$PWD" && python models/torchscript_export.py --weights ./weights/yolov5s.pt --img 640 --batch 1 |
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""" |
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import argparse |
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from models.common import * |
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from utils import google_utils |
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if __name__ == '__main__': |
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parser = argparse.ArgumentParser() |
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parser.add_argument('--weights', type=str, default='./yolov5s.pt', help='weights path') |
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parser.add_argument('--img-size', nargs='+', type=int, default=[640, 640], help='image size') |
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parser.add_argument('--batch-size', type=int, default=1, help='batch size') |
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opt = parser.parse_args() |
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print(opt) |
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f = opt.weights.replace('.pt', '.torchscript') |
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img = torch.zeros((opt.batch_size, 3, *opt.img_size)) |
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google_utils.attempt_download(opt.weights) |
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model = torch.load(opt.weights, map_location=torch.device('cpu'))['model'].float() |
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model.eval() |
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model.model[-1].export = True |
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_ = model(img) |
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traced_script_module = torch.jit.trace(model, img) |
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traced_script_module.save(f) |