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'''
Author: Naiyuan liu
Github: https://github.com/NNNNAI
Date: 2021-11-23 17:03:58
LastEditors: Naiyuan liu
LastEditTime: 2021-11-24 16:46:04
Description:
'''
from __future__ import division
import collections
import numpy as np
import glob
import os
import os.path as osp
import cv2
from insightface.model_zoo import model_zoo
from insightface_func.utils import face_align_ffhqandnewarc as face_align
__all__ = ['Face_detect_crop', 'Face']
Face = collections.namedtuple('Face', [
'bbox', 'kps', 'det_score', 'embedding', 'gender', 'age',
'embedding_norm', 'normed_embedding',
'landmark'
])
Face.__new__.__defaults__ = (None, ) * len(Face._fields)
class Face_detect_crop:
def __init__(self, name, root='~/.insightface_func/models'):
self.models = {}
root = os.path.expanduser(root)
onnx_files = glob.glob(osp.join(root, name, '*.onnx'))
onnx_files = sorted(onnx_files)
for onnx_file in onnx_files:
if onnx_file.find('_selfgen_')>0:
#print('ignore:', onnx_file)
continue
model = model_zoo.get_model(onnx_file)
if model.taskname not in self.models:
print('find model:', onnx_file, model.taskname)
self.models[model.taskname] = model
else:
print('duplicated model task type, ignore:', onnx_file, model.taskname)
del model
assert 'detection' in self.models
self.det_model = self.models['detection']
def prepare(self, ctx_id, det_thresh=0.5, det_size=(640, 640), mode ='None'):
self.det_thresh = det_thresh
self.mode = mode
assert det_size is not None
print('set det-size:', det_size)
self.det_size = det_size
for taskname, model in self.models.items():
if taskname=='detection':
model.prepare(ctx_id, input_size=det_size)
else:
model.prepare(ctx_id)
def get(self, img, crop_size, max_num=0):
bboxes, kpss = self.det_model.detect(
img,
threshold=self.det_thresh,
max_num=max_num,
metric='default'
)
if bboxes.shape[0] == 0:
return None
det_score = bboxes[..., 4]
best_index = np.argmax(det_score)
kps = None
if kpss is not None:
kps = kpss[best_index]
# 🔧 thêm margin dưới cằm
# dịch toàn bộ keypoints xuống 5% chiều cao khuôn mặt
h, w, _ = img.shape
face_h = bboxes[best_index][3] - bboxes[best_index][1]
kps[:,1] += int(0.1 * face_h) # tăng 0.1 = 10% chiều cao (giữ cằm)
# align về crop_size như cũ
M, _ = face_align.estimate_norm(kps, crop_size, mode=self.mode)
align_img = cv2.warpAffine(img, M, (crop_size, crop_size), borderValue=0.0)
return [align_img], [M]
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