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import torch
import torch.onnx
from basicsr.archs.rrdbnet_arch import RRDBNet
# An instance of your model
model = RRDBNet(num_in_ch=3, num_out_ch=3, num_feat=64, num_block=23, num_grow_ch=32)
model.load_state_dict(torch.load('experiments/pretrained_models/RealESRGAN_x4plus.pth')['params_ema'])
# set the train mode to false since we will only run the forward pass.
model.train(False)
model.cpu().eval()
# An example input you would normally provide to your model's forward() method
x = torch.rand(1, 3, 64, 64)
# Export the model
with torch.no_grad():
torch_out = torch.onnx._export(model, x, 'realesrgan-x4.onnx', opset_version=11, export_params=True)
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