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import torch
from torchvision import transforms
from PIL import Image
import json
import numpy as np
# from model import load_model
from transformers import AutoImageProcessor, SwinForImageClassification
import torch.nn as nn
import os
import pandas as pd
import random
# Load labels
with open("labels.json", "r") as f:
class_names = json.load(f)
print("class_names:", class_names)
# Load model
model = SwinForImageClassification.from_pretrained("microsoft/swin-base-patch4-window7-224")
model.classifier = torch.nn.Linear(model.classifier.in_features, len(class_names))
state_dict = torch.load("best_model.pth", map_location="cpu")
# Remove incompatible keys (classifier weights)
filtered_state_dict = {k: v for k, v in state_dict.items() if "classifier" not in k}
model.load_state_dict(filtered_state_dict, strict=False)
model.eval()
# Image transform
# transform = transforms.Compose([
# transforms.Resize((224, 224)),
# transforms.ToTensor(),
# transforms.Normalize([0.5, 0.5, 0.5], [0.5, 0.5, 0.5])
# ])
#Swin
transform = transforms.Compose([
transforms.Resize((224, 224)),
transforms.ToTensor(),
transforms.Normalize(mean=[0.485, 0.456, 0.406],
std=[0.229, 0.224, 0.225])
])
def predict(image_path):
# Load and prepare image
image = Image.open(image_path).convert("RGB")
x = transform(image).unsqueeze(0)
with torch.no_grad():
outputs = model(x)
print("Logits:", outputs.logits)
probs = torch.nn.functional.softmax(outputs.logits, dim=1)[0]
print("Probs:", probs)
print("Sum of probs:", probs.sum())
top5 = torch.topk(probs, k=5)
top1_idx = int(top5.indices[0])
top1_label = class_names[top1_idx]
# Select a random image from the class subfolder
class_folder = f"sample_images/{str(top1_label).replace(' ', '_')}"
reference_image = None
if os.path.isdir(class_folder):
# List all image files in the folder
image_files = [f for f in os.listdir(class_folder) if f.lower().endswith((".jpg", ".jpeg", ".png", ".bmp", ".gif", ".webp"))]
if image_files:
chosen_file = random.choice(image_files)
ref_path = os.path.join(class_folder, chosen_file)
print(f"[DEBUG] Randomly selected reference image: {ref_path}")
reference_image = Image.open(ref_path).convert("RGB")
else:
print(f"[DEBUG] No images found in {class_folder}")
else:
print(f"[DEBUG] Class folder does not exist: {class_folder}")
# Format Top-5 for gr.Label with class names
top5_probs = {class_names[int(idx)]: float(score) for idx, score in zip(top5.indices, top5.values)}
print(f"image path: {image_path}")
print(f"top1_label: {top1_label}")
print(f"[DEBUG] Top-5 indices: {top5.indices}")
print(f"[DEBUG] Top-5 labels: {[class_names[int(idx)] for idx in top5.indices]}")
print(f"[DEBUG] Top-5 probs: {top5_probs}")
return image, reference_image, top5_probs
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