mirror of
https://github.com/iperov/DeepFaceLab.git
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407ce3b1ca
With interactive converter you can change any parameter of any frame and see the result in real time. Converter: added motion_blur_power param. Motion blur is applied by precomputed motion vectors. So the moving face will look more realistic. RecycleGAN model is removed. Added experimental AVATAR model. Minimum required VRAM is 6GB (NVIDIA), 12GB (AMD) Usage: 1) place data_src.mp4 10-20min square resolution video of news reporter sitting at the table with static background, other faces should not appear in frames. 2) process "extract images from video data_src.bat" with FULL fps 3) place data_dst.mp4 video of face who will control the src face 4) process "extract images from video data_dst FULL FPS.bat" 5) process "data_src mark faces S3FD best GPU.bat" 6) process "data_dst extract unaligned faces S3FD best GPU.bat" 7) train AVATAR.bat stage 1, tune batch size to maximum for your card (32 for 6GB), train to 50k+ iters. 8) train AVATAR.bat stage 2, tune batch size to maximum for your card (4 for 6GB), train to decent sharpness. 9) convert AVATAR.bat 10) converted to mp4.bat updated versions of modules
392 lines
No EOL
21 KiB
Python
392 lines
No EOL
21 KiB
Python
import traceback
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import cv2
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import numpy as np
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import imagelib
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from facelib import FaceType, LandmarksProcessor
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from interact import interact as io
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from utils.cv2_utils import *
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def ConvertMaskedFace (cfg, frame_info, img_bgr_uint8, img_bgr, img_face_landmarks):
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#if debug:
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# debugs = [img_bgr.copy()]
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img_size = img_bgr.shape[1], img_bgr.shape[0]
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img_face_mask_a = LandmarksProcessor.get_image_hull_mask (img_bgr.shape, img_face_landmarks)
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if cfg.mode == 'original':
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if cfg.export_mask_alpha:
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img_bgr = np.concatenate ( [img_bgr, img_face_mask_a], -1 )
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return img_bgr, img_face_mask_a
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out_img = img_bgr.copy()
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out_merging_mask = None
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output_size = cfg.predictor_input_shape[0]
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if cfg.super_resolution:
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output_size *= 2
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face_mat = LandmarksProcessor.get_transform_mat (img_face_landmarks, output_size, face_type=cfg.face_type)
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face_output_mat = LandmarksProcessor.get_transform_mat (img_face_landmarks, output_size, face_type=cfg.face_type, scale= 1.0 + 0.01*cfg.output_face_scale )
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dst_face_bgr = cv2.warpAffine( img_bgr , face_mat, (output_size, output_size), flags=cv2.INTER_CUBIC )
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dst_face_mask_a_0 = cv2.warpAffine( img_face_mask_a, face_mat, (output_size, output_size), flags=cv2.INTER_CUBIC )
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predictor_input_bgr = cv2.resize (dst_face_bgr, cfg.predictor_input_shape[0:2] )
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if cfg.predictor_masked:
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prd_face_bgr, prd_face_mask_a_0 = cfg.predictor_func (predictor_input_bgr)
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prd_face_bgr = np.clip (prd_face_bgr, 0, 1.0 )
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prd_face_mask_a_0 = np.clip (prd_face_mask_a_0, 0.0, 1.0)
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else:
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predicted = cfg.predictor_func (predictor_input_bgr)
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prd_face_bgr = np.clip (predicted, 0, 1.0 )
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prd_face_mask_a_0 = cv2.resize (dst_face_mask_a_0, cfg.predictor_input_shape[0:2] )
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if cfg.super_resolution:
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#if debug:
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# tmp = cv2.resize (prd_face_bgr, (output_size,output_size), cv2.INTER_CUBIC)
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# debugs += [ np.clip( cv2.warpAffine( tmp, face_output_mat, img_size, img_bgr.copy(), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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prd_face_bgr = cfg.dcscn_upscale_func(prd_face_bgr)
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, img_bgr.copy(), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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if cfg.predictor_masked:
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prd_face_mask_a_0 = cv2.resize (prd_face_mask_a_0, (output_size, output_size), cv2.INTER_CUBIC)
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else:
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prd_face_mask_a_0 = cv2.resize (dst_face_mask_a_0, (output_size, output_size), cv2.INTER_CUBIC)
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if cfg.mask_mode == 2: #dst
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prd_face_mask_a_0 = cv2.resize (dst_face_mask_a_0, (output_size,output_size), cv2.INTER_CUBIC)
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elif cfg.mask_mode >= 3 and cfg.mask_mode <= 7:
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if cfg.mask_mode == 3 or cfg.mask_mode == 5 or cfg.mask_mode == 6:
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prd_face_fanseg_bgr = cv2.resize (prd_face_bgr, (cfg.fanseg_input_size,)*2 )
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prd_face_fanseg_mask = cfg.fanseg_extract_func(FaceType.FULL, prd_face_fanseg_bgr)
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FAN_prd_face_mask_a_0 = cv2.resize ( prd_face_fanseg_mask, (output_size, output_size), cv2.INTER_CUBIC)
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if cfg.mask_mode >= 4 or cfg.mask_mode <= 7:
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full_face_fanseg_mat = LandmarksProcessor.get_transform_mat (img_face_landmarks, cfg.fanseg_input_size, face_type=FaceType.FULL)
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dst_face_fanseg_bgr = cv2.warpAffine(img_bgr, full_face_fanseg_mat, (cfg.fanseg_input_size,)*2, flags=cv2.INTER_CUBIC )
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dst_face_fanseg_mask = cfg.fanseg_extract_func( FaceType.FULL, dst_face_fanseg_bgr )
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if cfg.face_type == FaceType.FULL:
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FAN_dst_face_mask_a_0 = cv2.resize (dst_face_fanseg_mask, (output_size,output_size), cv2.INTER_CUBIC)
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elif cfg.face_type == FaceType.HALF:
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half_face_fanseg_mat = LandmarksProcessor.get_transform_mat (img_face_landmarks, cfg.fanseg_input_size, face_type=FaceType.HALF)
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fanseg_rect_corner_pts = np.array ( [ [0,0], [cfg.fanseg_input_size-1,0], [0,cfg.fanseg_input_size-1] ], dtype=np.float32 )
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a = LandmarksProcessor.transform_points (fanseg_rect_corner_pts, half_face_fanseg_mat, invert=True )
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b = LandmarksProcessor.transform_points (a, full_face_fanseg_mat )
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m = cv2.getAffineTransform(b, fanseg_rect_corner_pts)
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FAN_dst_face_mask_a_0 = cv2.warpAffine(dst_face_fanseg_mask, m, (cfg.fanseg_input_size,)*2, flags=cv2.INTER_CUBIC )
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FAN_dst_face_mask_a_0 = cv2.resize (FAN_dst_face_mask_a_0, (output_size,output_size), cv2.INTER_CUBIC)
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else:
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raise ValueError ("cfg.face_type unsupported")
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if cfg.mask_mode == 3: #FAN-prd
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prd_face_mask_a_0 = FAN_prd_face_mask_a_0
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elif cfg.mask_mode == 4: #FAN-dst
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prd_face_mask_a_0 = FAN_dst_face_mask_a_0
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elif cfg.mask_mode == 5:
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prd_face_mask_a_0 = FAN_prd_face_mask_a_0 * FAN_dst_face_mask_a_0
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elif cfg.mask_mode == 6:
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prd_face_mask_a_0 = prd_face_mask_a_0 * FAN_prd_face_mask_a_0 * FAN_dst_face_mask_a_0
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elif cfg.mask_mode == 7:
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prd_face_mask_a_0 = prd_face_mask_a_0 * FAN_dst_face_mask_a_0
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prd_face_mask_a_0[ prd_face_mask_a_0 < 0.001 ] = 0.0
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prd_face_mask_a = prd_face_mask_a_0[...,np.newaxis]
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prd_face_mask_aaa = np.repeat (prd_face_mask_a, (3,), axis=-1)
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img_face_mask_aaa = cv2.warpAffine( prd_face_mask_aaa, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), flags=cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC )
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img_face_mask_aaa = np.clip (img_face_mask_aaa, 0.0, 1.0)
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img_face_mask_aaa [ img_face_mask_aaa <= 0.1 ] = 0.0 #get rid of noise
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#if debug:
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# debugs += [img_face_mask_aaa.copy()]
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if 'raw' in cfg.mode:
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face_corner_pts = np.array ([ [0,0], [output_size-1,0], [output_size-1,output_size-1], [0,output_size-1] ], dtype=np.float32)
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square_mask = np.zeros(img_bgr.shape, dtype=np.float32)
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cv2.fillConvexPoly(square_mask, \
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LandmarksProcessor.transform_points (face_corner_pts, face_output_mat, invert=True ).astype(np.int), \
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(1,1,1) )
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if cfg.mode == 'raw-rgb':
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out_merging_mask = square_mask
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if cfg.mode == 'raw-rgb' or cfg.mode == 'raw-rgb-mask':
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out_img = cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, out_img, cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT )
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if cfg.mode == 'raw-rgb-mask':
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out_img = np.concatenate ( [out_img, np.expand_dims (img_face_mask_aaa[:,:,0],-1)], -1 )
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out_merging_mask = square_mask
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elif cfg.mode == 'raw-mask-only':
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out_img = img_face_mask_aaa
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out_merging_mask = img_face_mask_aaa
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elif cfg.mode == 'raw-predicted-only':
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out_img = cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT )
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out_merging_mask = square_mask
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out_img = np.clip (out_img, 0.0, 1.0 )
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else:
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#averaging [lenx, leny, maskx, masky] by grayscale gradients of upscaled mask
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ar = []
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for i in range(1, 10):
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maxregion = np.argwhere( img_face_mask_aaa > i / 10.0 )
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if maxregion.size != 0:
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miny,minx = maxregion.min(axis=0)[:2]
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maxy,maxx = maxregion.max(axis=0)[:2]
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lenx = maxx - minx
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leny = maxy - miny
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if min(lenx,leny) >= 4:
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ar += [ [ lenx, leny] ]
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if len(ar) > 0:
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lenx, leny = np.mean ( ar, axis=0 )
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lowest_len = min (lenx, leny)
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#if debug:
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# io.log_info ("lenx/leny:(%d/%d) " % (lenx, leny ) )
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# io.log_info ("lowest_len = %f" % (lowest_len) )
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if cfg.erode_mask_modifier != 0:
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ero = int( lowest_len * ( 0.126 - lowest_len * 0.00004551365 ) * 0.01*cfg.erode_mask_modifier )
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#if debug:
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# io.log_info ("erode_size = %d" % (ero) )
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if ero > 0:
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img_face_mask_aaa = cv2.erode(img_face_mask_aaa, cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(ero,ero)), iterations = 1 )
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elif ero < 0:
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img_face_mask_aaa = cv2.dilate(img_face_mask_aaa, cv2.getStructuringElement(cv2.MORPH_ELLIPSE,(-ero,-ero)), iterations = 1 )
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if cfg.clip_hborder_mask_per > 0: #clip hborder before blur
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prd_hborder_rect_mask_a = np.ones ( prd_face_mask_a.shape, dtype=np.float32)
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prd_border_size = int ( prd_hborder_rect_mask_a.shape[1] * cfg.clip_hborder_mask_per )
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prd_hborder_rect_mask_a[:,0:prd_border_size,:] = 0
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prd_hborder_rect_mask_a[:,-prd_border_size:,:] = 0
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prd_hborder_rect_mask_a[-prd_border_size:,:,:] = 0
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prd_hborder_rect_mask_a = np.expand_dims(cv2.blur(prd_hborder_rect_mask_a, (prd_border_size, prd_border_size) ),-1)
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img_prd_hborder_rect_mask_a = cv2.warpAffine( prd_hborder_rect_mask_a, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC )
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img_prd_hborder_rect_mask_a = np.expand_dims (img_prd_hborder_rect_mask_a, -1)
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img_face_mask_aaa *= img_prd_hborder_rect_mask_a
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img_face_mask_aaa = np.clip( img_face_mask_aaa, 0, 1.0 )
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#if debug:
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# debugs += [img_face_mask_aaa.copy()]
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if cfg.blur_mask_modifier > 0:
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blur = int( lowest_len * 0.10 * 0.01*cfg.blur_mask_modifier )
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#if debug:
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# io.log_info ("blur_size = %d" % (blur) )
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if blur > 0:
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img_face_mask_aaa = cv2.blur(img_face_mask_aaa, (blur, blur) )
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img_face_mask_aaa = np.clip( img_face_mask_aaa, 0, 1.0 )
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#if debug:
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# debugs += [img_face_mask_aaa.copy()]
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if 'seamless' not in cfg.mode and cfg.color_transfer_mode != 0:
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if cfg.color_transfer_mode == 1:
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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prd_face_bgr = imagelib.reinhard_color_transfer ( np.clip( (prd_face_bgr*255).astype(np.uint8), 0, 255),
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np.clip( (dst_face_bgr*255).astype(np.uint8), 0, 255),
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source_mask=prd_face_mask_a, target_mask=prd_face_mask_a)
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prd_face_bgr = np.clip( prd_face_bgr.astype(np.float32) / 255.0, 0.0, 1.0)
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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elif cfg.color_transfer_mode == 2:
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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prd_face_bgr = imagelib.linear_color_transfer (prd_face_bgr, dst_face_bgr)
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prd_face_bgr = np.clip( prd_face_bgr, 0.0, 1.0)
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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if cfg.mode == 'hist-match-bw':
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prd_face_bgr = cv2.cvtColor(prd_face_bgr, cv2.COLOR_BGR2GRAY)
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prd_face_bgr = np.repeat( np.expand_dims (prd_face_bgr, -1), (3,), -1 )
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if cfg.mode == 'hist-match' or cfg.mode == 'hist-match-bw':
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#if debug:
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# debugs += [ cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ) ]
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hist_mask_a = np.ones ( prd_face_bgr.shape[:2] + (1,) , dtype=np.float32)
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if cfg.masked_hist_match:
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hist_mask_a *= prd_face_mask_a
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white = (1.0-hist_mask_a)* np.ones ( prd_face_bgr.shape[:2] + (1,) , dtype=np.float32)
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hist_match_1 = prd_face_bgr*hist_mask_a + white
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hist_match_1[ hist_match_1 > 1.0 ] = 1.0
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hist_match_2 = dst_face_bgr*hist_mask_a + white
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hist_match_2[ hist_match_1 > 1.0 ] = 1.0
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prd_face_bgr = imagelib.color_hist_match(hist_match_1, hist_match_2, cfg.hist_match_threshold )
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#if cfg.masked_hist_match:
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# prd_face_bgr -= white
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if cfg.mode == 'hist-match-bw':
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prd_face_bgr = prd_face_bgr.astype(dtype=np.float32)
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out_img = cv2.warpAffine( prd_face_bgr, face_output_mat, img_size, out_img, cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT )
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out_img = np.clip(out_img, 0.0, 1.0)
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#if debug:
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# debugs += [out_img.copy()]
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if cfg.mode == 'overlay':
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pass
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if 'seamless' in cfg.mode:
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#mask used for cv2.seamlessClone
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img_face_seamless_mask_a = None
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img_face_mask_a = img_face_mask_aaa[...,0:1]
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for i in range(1,10):
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a = img_face_mask_a > i / 10.0
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if len(np.argwhere(a)) == 0:
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continue
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img_face_seamless_mask_a = img_face_mask_aaa[...,0:1].copy()
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img_face_seamless_mask_a[a] = 1.0
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img_face_seamless_mask_a[img_face_seamless_mask_a <= i / 10.0] = 0.0
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break
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try:
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#calc same bounding rect and center point as in cv2.seamlessClone to prevent jittering (not flickering)
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l,t,w,h = cv2.boundingRect( (img_face_seamless_mask_a*255).astype(np.uint8) )
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s_maskx, s_masky = int(l+w/2), int(t+h/2)
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out_img = cv2.seamlessClone( (out_img*255).astype(np.uint8), img_bgr_uint8, (img_face_seamless_mask_a*255).astype(np.uint8), (s_maskx,s_masky) , cv2.NORMAL_CLONE )
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out_img = out_img.astype(dtype=np.float32) / 255.0
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except Exception as e:
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#seamlessClone may fail in some cases
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e_str = traceback.format_exc()
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if 'MemoryError' in e_str:
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raise Exception("Seamless fail: " + e_str) #reraise MemoryError in order to reprocess this data by other processes
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else:
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print ("Seamless fail: " + e_str)
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#if debug:
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# debugs += [out_img.copy()]
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out_img = img_bgr*(1-img_face_mask_aaa) + (out_img*img_face_mask_aaa)
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if 'seamless' in cfg.mode and cfg.color_transfer_mode != 0:
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out_face_bgr = cv2.warpAffine( out_img, face_mat, (output_size, output_size) )
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if cfg.color_transfer_mode == 1:
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( out_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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face_mask_aaa = cv2.warpAffine( img_face_mask_aaa, face_mat, (output_size, output_size) )
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new_out_face_bgr = imagelib.reinhard_color_transfer ( np.clip( (out_face_bgr*255).astype(np.uint8), 0, 255),
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np.clip( (dst_face_bgr*255).astype(np.uint8), 0, 255),
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source_mask=face_mask_aaa, target_mask=face_mask_aaa)
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new_out_face_bgr = np.clip( new_out_face_bgr.astype(np.float32) / 255.0, 0.0, 1.0)
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( new_out_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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elif cfg.color_transfer_mode == 2:
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( out_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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new_out_face_bgr = imagelib.linear_color_transfer (out_face_bgr, dst_face_bgr)
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new_out_face_bgr = np.clip( new_out_face_bgr, 0.0, 1.0)
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#if debug:
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# debugs += [ np.clip( cv2.warpAffine( new_out_face_bgr, face_output_mat, img_size, np.zeros(img_bgr.shape, dtype=np.float32), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT ), 0, 1.0) ]
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new_out = cv2.warpAffine( new_out_face_bgr, face_mat, img_size, img_bgr.copy(), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT )
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out_img = np.clip( img_bgr*(1-img_face_mask_aaa) + (new_out*img_face_mask_aaa) , 0, 1.0 )
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if cfg.mode == 'seamless-hist-match':
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out_face_bgr = cv2.warpAffine( out_img, face_mat, (output_size, output_size) )
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new_out_face_bgr = imagelib.color_hist_match(out_face_bgr, dst_face_bgr, cfg.hist_match_threshold)
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new_out = cv2.warpAffine( new_out_face_bgr, face_mat, img_size, img_bgr.copy(), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT )
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out_img = np.clip( img_bgr*(1-img_face_mask_aaa) + (new_out*img_face_mask_aaa) , 0, 1.0 )
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cfg_mp = cfg.motion_blur_power / 100.0
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if cfg_mp != 0:
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k_size = int(frame_info.motion_power*cfg_mp)
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if k_size >= 1:
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k_size = np.clip (k_size+1, 2, 50)
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if cfg.super_resolution:
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k_size *= 2
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out_face_bgr = cv2.warpAffine( out_img, face_mat, (output_size, output_size) )
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new_out_face_bgr = imagelib.LinearMotionBlur (out_face_bgr, k_size , frame_info.motion_deg)
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new_out = cv2.warpAffine( new_out_face_bgr, face_mat, img_size, img_bgr.copy(), cv2.WARP_INVERSE_MAP | cv2.INTER_CUBIC, cv2.BORDER_TRANSPARENT )
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out_img = np.clip( img_bgr*(1-img_face_mask_aaa) + (new_out*img_face_mask_aaa) , 0, 1.0 )
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if cfg.color_degrade_power != 0:
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#if debug:
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# debugs += [out_img.copy()]
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out_img_reduced = imagelib.reduce_colors(out_img, 256)
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if cfg.color_degrade_power == 100:
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out_img = out_img_reduced
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else:
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alpha = cfg.color_degrade_power / 100.0
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out_img = (out_img*(1.0-alpha) + out_img_reduced*alpha)
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if cfg.export_mask_alpha:
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out_img = np.concatenate ( [out_img, img_face_mask_aaa[:,:,0:1]], -1 )
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out_merging_mask = img_face_mask_aaa
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#if debug:
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# debugs += [out_img.copy()]
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return out_img, out_merging_mask
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def ConvertMasked (cfg, frame_info):
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img_bgr_uint8 = cv2_imread(frame_info.filename)
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img_bgr_uint8 = imagelib.normalize_channels (img_bgr_uint8, 3)
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|
img_bgr = img_bgr_uint8.astype(np.float32) / 255.0
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|
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outs = []
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|
for face_num, img_landmarks in enumerate( frame_info.landmarks_list ):
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out_img, out_img_merging_mask = ConvertMaskedFace (cfg, frame_info, img_bgr_uint8, img_bgr, img_landmarks)
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outs += [ (out_img, out_img_merging_mask) ]
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|
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#Combining multiple face outputs
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|
final_img = None
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|
for img, merging_mask in outs:
|
|
h,w,c = img.shape
|
|
|
|
if final_img is None:
|
|
final_img = img
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|
else:
|
|
merging_mask = merging_mask[...,0:1]
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|
if c == 3:
|
|
final_img = final_img*(1-merging_mask) + img*merging_mask
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|
elif c == 4:
|
|
final_img_bgr = final_img[...,0:3]*(1-merging_mask) + img[...,0:3]*merging_mask
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|
final_img_mask = np.clip ( final_img[...,3:4] + img[...,3:4], 0, 1 )
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|
final_img = np.concatenate ( [final_img_bgr, final_img_mask], -1 )
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|
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|
return (final_img*255).astype(np.uint8) |