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| ''' | |
| @paper: GAN Prior Embedded Network for Blind Face Restoration in the Wild (CVPR2021) | |
| @author: yangxy (yangtao9009@gmail.com) | |
| ''' | |
| import os | |
| import cv2 | |
| import glob | |
| import time | |
| import math | |
| import numpy as np | |
| from PIL import Image, ImageDraw | |
| import __init_paths | |
| from face_model.face_gan import FaceGAN | |
| # modified by yangxy | |
| def brush_stroke_mask(img, color=(255,255,255)): | |
| min_num_vertex = 8 | |
| max_num_vertex = 28 | |
| mean_angle = 2*math.pi / 5 | |
| angle_range = 2*math.pi / 15 | |
| min_width = 12 | |
| max_width = 80 | |
| def generate_mask(H, W, img=None): | |
| average_radius = math.sqrt(H*H+W*W) / 8 | |
| mask = Image.new('RGB', (W, H), 0) | |
| if img is not None: mask = img #Image.fromarray(img) | |
| for _ in range(np.random.randint(1, 4)): | |
| num_vertex = np.random.randint(min_num_vertex, max_num_vertex) | |
| angle_min = mean_angle - np.random.uniform(0, angle_range) | |
| angle_max = mean_angle + np.random.uniform(0, angle_range) | |
| angles = [] | |
| vertex = [] | |
| for i in range(num_vertex): | |
| if i % 2 == 0: | |
| angles.append(2*math.pi - np.random.uniform(angle_min, angle_max)) | |
| else: | |
| angles.append(np.random.uniform(angle_min, angle_max)) | |
| h, w = mask.size | |
| vertex.append((int(np.random.randint(0, w)), int(np.random.randint(0, h)))) | |
| for i in range(num_vertex): | |
| r = np.clip( | |
| np.random.normal(loc=average_radius, scale=average_radius//2), | |
| 0, 2*average_radius) | |
| new_x = np.clip(vertex[-1][0] + r * math.cos(angles[i]), 0, w) | |
| new_y = np.clip(vertex[-1][1] + r * math.sin(angles[i]), 0, h) | |
| vertex.append((int(new_x), int(new_y))) | |
| draw = ImageDraw.Draw(mask) | |
| width = int(np.random.uniform(min_width, max_width)) | |
| draw.line(vertex, fill=color, width=width) | |
| for v in vertex: | |
| draw.ellipse((v[0] - width//2, | |
| v[1] - width//2, | |
| v[0] + width//2, | |
| v[1] + width//2), | |
| fill=color) | |
| return mask | |
| width, height = img.size | |
| mask = generate_mask(height, width, img) | |
| return mask | |
| class FaceInpainting(object): | |
| def __init__(self, base_dir='./', size=1024, model=None, channel_multiplier=2): | |
| self.facegan = FaceGAN(base_dir, size, model, channel_multiplier) | |
| # make sure the face image is well aligned. Please refer to face_enhancement.py | |
| def process(self, brokenf): | |
| # complete the face | |
| out = self.facegan.process(brokenf) | |
| return out | |
| if __name__=='__main__': | |
| model = {'name':'GPEN-Inpainting-1024', 'size':1024} | |
| indir = 'examples/ffhq-10' | |
| outdir = 'examples/outs-inpainting' | |
| os.makedirs(outdir, exist_ok=True) | |
| faceinpainter = FaceInpainting(size=model['size'], model=model['name'], channel_multiplier=2) | |
| files = sorted(glob.glob(os.path.join(indir, '*.*g'))) | |
| for n, file in enumerate(files[:]): | |
| filename = os.path.basename(file) | |
| originf = cv2.imread(file, cv2.IMREAD_COLOR) | |
| brokenf = np.asarray(brush_stroke_mask(Image.fromarray(originf))) | |
| completef = faceinpainter.process(brokenf) | |
| originf = cv2.resize(originf, completef.shape[:2]) | |
| brokenf = cv2.resize(brokenf, completef.shape[:2]) | |
| cv2.imwrite(os.path.join(outdir, '.'.join(filename.split('.')[:-1])+'.jpg'), np.hstack((brokenf, completef, originf))) | |
| if n%10==0: print(n, file) | |