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| import torch | |
| import torchvision.transforms as transforms | |
| import numpy as np | |
| import gradio as gr | |
| from PIL import Image, ImageDraw | |
| from facenet_pytorch import MTCNN, InceptionResnetV1 | |
| import time | |
| # Initialize MTCNN for face detection with smaller face size detection | |
| mtcnn = MTCNN(keep_all=True, device='cuda' if torch.cuda.is_available() else 'cpu', min_face_size=12) | |
| # Load the pre-trained FaceNet model | |
| facenet = InceptionResnetV1(pretrained='vggface2').eval().to('cuda' if torch.cuda.is_available() else 'cpu') | |
| model_path = r'faceNet_update_transformation.pth' | |
| model_state_dict = torch.load(model_path) | |
| facenet.load_state_dict(model_state_dict) | |
| facenet.eval() # Set the model to evaluation mode | |
| # Define the transformation with normalization | |
| val_test_transform = transforms.Compose([ | |
| transforms.Resize((160, 160)), # FaceNet expects 160x160 input | |
| transforms.ToTensor(), | |
| transforms.Normalize(mean=[0.485, 0.456, 0.406], std=[0.229, 0.224, 0.225]) | |
| ]) | |
| def compare_faces(embedding1, embedding2, threshold=0.2): # Adjusted threshold | |
| dist = np.linalg.norm(embedding1 - embedding2) | |
| return dist, dist < threshold | |
| def align_face(frame): | |
| # Convert the frame to a PIL image if it's a numpy array | |
| if isinstance(frame, np.ndarray): | |
| frame = Image.fromarray(frame) | |
| boxes, _ = mtcnn.detect(frame) | |
| if boxes is not None and len(boxes) > 0: | |
| faces = mtcnn(frame) | |
| if faces is not None and len(faces) > 0: | |
| face = faces[0] | |
| # Convert the face tensor to PIL Image | |
| face = transforms.ToPILImage()(face) | |
| return face, boxes[0] | |
| return None, None | |
| def draw_bounding_box(image, box): | |
| draw = ImageDraw.Draw(image) | |
| draw.rectangle(box.tolist(), outline="red", width=3) | |
| return image | |
| def l2_normalize(tensor): | |
| norm = np.linalg.norm(tensor, ord=2, axis=1, keepdims=True) | |
| return tensor / norm | |
| def process_images(image1, image2): | |
| start_time = time.time() | |
| frame1 = np.array(image1) | |
| frame2 = np.array(image2) | |
| face1, box1 = align_face(frame1) | |
| face2, box2 = align_face(frame2) | |
| if face1 is None or face2 is None: | |
| return None, "Face not detected in one or both images." | |
| face1 = val_test_transform(face1).unsqueeze(0).to('cuda' if torch.cuda.is_available() else 'cpu') | |
| face2 = val_test_transform(face2).unsqueeze(0).to('cuda' if torch.cuda.is_available() else 'cpu') | |
| with torch.no_grad(): | |
| embedding1 = facenet(face1).cpu().numpy() | |
| embedding2 = facenet(face2).cpu().numpy() | |
| embedding1 = l2_normalize(embedding1) | |
| embedding2 = l2_normalize(embedding2) | |
| distance, is_match = compare_faces(embedding1, embedding2, threshold=0.1) | |
| # Calculate confidence | |
| confidence = max(0.0, 1.0 - distance / 1.0) # Ensure confidence is between 0 and 1 | |
| print(f'confidence={confidence}') | |
| end_time = time.time() | |
| inference_time = end_time - start_time | |
| # Draw bounding boxes on the original images | |
| image1_with_box = draw_bounding_box(image1, box1) | |
| image2_with_box = draw_bounding_box(image2, box2) | |
| result = f"Distance: {distance:.2f}\nMatch: {is_match}\nInference time: {inference_time:.2f} seconds" | |
| return [image1_with_box, image2_with_box], result | |
| # Create the Gradio interface | |
| iface = gr.Interface( | |
| fn=process_images, | |
| inputs=[gr.Image(type="pil"), gr.Image(type="pil")], | |
| outputs=[gr.Gallery(), gr.Textbox()], | |
| title="Face Verification with FaceNet", | |
| description="Upload two images and the model will verify if the faces in both images are of the same person." | |
| ) | |
| # Launch the interface | |
| iface.launch(share=True, debug=True) |