| |
| |
|
|
| import torch |
| import numpy as np |
| from .arcface import Backbone |
| from torch.hub import download_url_to_file, get_dir |
| from urllib.parse import urlparse |
| import os |
|
|
| ROOT_DIR = os.path.dirname(os.path.abspath(__file__)) |
|
|
| __all__ = [ |
| "FaceEncoderArcFace", |
| "get_landmarks_from_image", |
| ] |
|
|
|
|
| detector = None |
|
|
| def get_landmarks_from_image(image): |
| """ |
| Detect landmarks with insightface. |
| |
| Args: |
| image (np.ndarray or PIL.Image): |
| The input image in RGB format. |
| |
| Returns: |
| 5 2D keypoints, only one face will be returned. |
| """ |
| from insightface.app import FaceAnalysis |
| global detector |
| if detector is None: |
| detector = FaceAnalysis() |
| detector.prepare(ctx_id=0, det_size=(640, 640)) |
|
|
| in_image = np.array(image).copy() |
| |
| faces = detector.get(in_image) |
| if len(faces) == 0: |
| raise ValueError("No face detected in the image") |
| |
| |
| face = max(faces, key=lambda x: (x.bbox[2] - x.bbox[0]) * (x.bbox[3] - x.bbox[1])) |
| |
| |
| keypoints = face.kps |
|
|
| return keypoints |
|
|
|
|
| def load_file_from_url(url, model_dir=None, progress=True, file_name=None, save_dir=None): |
| """Ref:https://github.com/1adrianb/face-alignment/blob/master/face_alignment/utils.py |
| """ |
| if model_dir is None: |
| hub_dir = get_dir() |
| model_dir = os.path.join(hub_dir, 'checkpoints') |
|
|
| if save_dir is None: |
| save_dir = os.path.join(ROOT_DIR, model_dir) |
| os.makedirs(save_dir, exist_ok=True) |
|
|
| parts = urlparse(url) |
| filename = os.path.basename(parts.path) |
| if file_name is not None: |
| filename = file_name |
| cached_file = os.path.abspath(os.path.join(save_dir, filename)) |
| if not os.path.exists(cached_file): |
| print(f'Downloading: "{url}" to {cached_file}\n') |
| download_url_to_file(url, cached_file, hash_prefix=None, progress=progress) |
| return cached_file |
|
|
| def init_recognition_model(model_name, half=False, device='cuda', model_rootpath=None): |
| print("Initializing recognition model:", model_name) |
| if model_name == 'arcface': |
| model = Backbone(num_layers=50, drop_ratio=0.6, mode='ir_se').to('cuda').eval() |
| model_url = 'https://github.com/xinntao/facexlib/releases/download/v0.1.0/recognition_arcface_ir_se50.pth' |
| else: |
| raise NotImplementedError(f'{model_name} is not implemented.') |
|
|
| model_path = load_file_from_url( |
| url=model_url, model_dir='facexlib/weights', progress=True, file_name=None, save_dir=model_rootpath) |
| print("Loading model from:", model_path) |
| model.load_state_dict(torch.load(model_path), strict=True) |
| model.eval() |
| model = model.to(device) |
| return model |
|
|
| class FaceEncoderArcFace(): |
| """ Official ArcFace, no_grad-only """ |
|
|
| def __repr__(self): |
| return "ArcFace" |
|
|
| def init_encoder_model(self, device, eval_mode=True): |
| self.device = device |
| self.encoder_model = init_recognition_model('arcface', device=device) |
|
|
| if eval_mode: |
| self.encoder_model.eval() |
|
|
| def __call__(self, in_image): |
| return self.encoder_model(in_image[:, [2, 1, 0], :, :].contiguous()) |
