Files
2025-04-20 21:02:44 +08:00

75 lines
1.9 KiB
Python

import json
import os
import matplotlib.pyplot as plt
import torch
from model import efficientnet_b0 as create_model
from PIL import Image
from torchvision import transforms
def main():
device = torch.device("cuda:0" if torch.cuda.is_available() else "cpu")
img_size = {
"B0": 224,
"B1": 240,
"B2": 260,
"B3": 300,
"B4": 380,
"B5": 456,
"B6": 528,
"B7": 600,
}
num_model = "B0"
data_transform = transforms.Compose(
[
transforms.Resize(img_size[num_model]),
transforms.CenterCrop(img_size[num_model]),
transforms.ToTensor(),
transforms.Normalize([0.485, 0.456, 0.406], [0.229, 0.224, 0.225]),
]
)
img_path = "../dress.png"
assert os.path.exists(img_path), "file: '{}' dose not exist.".format(img_path)
img = Image.open(img_path)
img = img.convert("RGB")
plt.imshow(img)
img = data_transform(img)
img = torch.unsqueeze(img, dim=0)
json_path = "./class_indices.json"
assert os.path.exists(json_path), "file: '{}' dose not exist.".format(json_path)
json_file = open(json_path, "r")
class_indict = json.load(json_file)
model = create_model(num_classes=5).to(device)
model_weight_path = "./weights/model-1.pth"
model.load_state_dict(torch.load(model_weight_path, map_location=device))
model.eval()
with torch.no_grad():
output = torch.squeeze(model(img.to(device))).cpu()
predict = torch.softmax(output, dim=0)
predict_cla = torch.argmax(predict).numpy()
print_res = "class: {} prob: {:.3}".format(
class_indict[str(predict_cla)], predict[predict_cla].numpy()
)
plt.title(print_res)
for i in range(len(predict)):
print(
"class: {:10} prob: {:.3}".format(
class_indict[str(i)], predict[i].numpy()
)
)
plt.show()
if __name__ == "__main__":
main()