Model card for rexnet_100.nav_in1k#
A ReXNet image classification model. Pretrained on ImageNet-1k by paper authors.
Model Details#
Model Type: Image classification / feature backboneModel Stats: Params (M): 4.8 GMACs: 0.4 Activations (M): 7.4 Image size: 224 x 224 Papers: Original: https://github.com/clovaai/rexnet Dataset: ImageNet-1k
Model Usage#
Image Classification#
from urllib.request import urlopen
from PIL import Image
import timm
img = Image.open(urlopen(
'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))
model = timm.create_model('rexnet_100.nav_in1k', pretrained=True)
model = model.eval()
# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)
output = model(transforms(img).unsqueeze(0)) # unsqueeze single image into batch of 1
top5_probabilities, top5_class_indices = torch.topk(output.softmax(dim=1) * 100, k=5) Copy
from urllib.request import urlopen
from PIL import Image
import timm
img = Image.open(urlopen(
'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))
model = timm.create_model(
'rexnet_100.nav_in1k',
pretrained=True,
features_only=True,
)
model = model.eval()
# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)
output = model(transforms(img).unsqueeze(0)) # unsqueeze single image into batch of 1
for o in output:
# print shape of each feature map in output
# e.g.:
# torch.Size([1, 16, 112, 112])
# torch.Size([1, 38, 56, 56])
# torch.Size([1, 61, 28, 28])
# torch.Size([1, 128, 14, 14])
# torch.Size([1, 185, 7, 7])
print(o.shape) Copy
Image Embeddings#
from urllib.request import urlopen
from PIL import Image
import timm
img = Image.open(urlopen(
'https://huggingface.co/datasets/huggingface/documentation-images/resolve/main/beignets-task-guide.png'
))
model = timm.create_model(
'rexnet_100.nav_in1k',
pretrained=True,
num_classes=0, # remove classifier nn.Linear
)
model = model.eval()
# get model specific transforms (normalization, resize)
data_config = timm.data.resolve_model_data_config(model)
transforms = timm.data.create_transform(**data_config, is_training=False)
output = model(transforms(img).unsqueeze(0)) # output is (batch_size, num_features) shaped tensor
# or equivalently (without needing to set num_classes=0)
output = model.forward_features(transforms(img).unsqueeze(0))
# output is unpooled, a (1, 1280, 7, 7) shaped tensor
output = model.forward_head(output, pre_logits=True)
# output is a (1, num_features) shaped tensor Copy
Model Comparison#
Explore the dataset and runtime metrics of this model in timm model results ."
model top1 top5 param_count img_size crop_pct rexnetr_300.sw_in12k_ft_in1k 84.53 97.252 34.81 288 1.0 rexnetr_200.sw_in12k_ft_in1k 83.164 96.648 16.52 288 1.0 rexnet_300.nav_in1k 82.772 96.232 34.71 224 0.875 rexnet_200.nav_in1k 81.652 95.668 16.37 224 0.875 rexnet_150.nav_in1k 80.308 95.174 9.73 224 0.875 rexnet_130.nav_in1k 79.478 94.68 7.56 224 0.875 rexnet_100.nav_in1k 77.832 93.886 4.8 224 0.875
Citation#
@misc{han2021rethinking,
title={Rethinking Channel Dimensions for Efficient Model Design},
author={Dongyoon Han and Sangdoo Yun and Byeongho Heo and YoungJoon Yoo},
year={2021},
eprint={2007.00992},
archivePrefix={arXiv},
primaryClass={cs.CV}
} Copy
@misc{rw2019timm,
author = {Ross Wightman},
title = {PyTorch Image Models},
year = {2019},
publisher = {GitHub},
journal = {GitHub repository},
doi = {10.5281/zenodo.4414861},
howpublished = {\url{https://github.com/huggingface/pytorch-image-models}}
} Copy