HDR单帧合成
这个示例展示如何使用一个简单的算法合成HDR效果
调用接口： - tianmoucv.proc.reconstruct.laplacian_blending
%load_ext autoreload
引入必要的库
%autoreload
from IPython.display import clear_output
import sys,os,cv2,torch
import torch.nn.functional as F
import numpy as np
import matplotlib.pyplot as plt
from tianmoucv.isp import SD2XY
from tianmoucv.proc.reconstruct import laplacian_blending
from tianmoucv.data import TianmoucDataReader
TianMouCV™ 0.3.5.4, via Y. Lin update new nn for reconstruction
数据读取
train='/data/lyh/tianmoucData/tianmoucReconDataset/train/'
dirlist = os.listdir(train)
traindata = [train + e for e in dirlist]
val='/data/lyh/tianmoucData/tianmoucReconDataset/test/'
vallist = os.listdir(val)
valdata = [val + e for e in vallist]
key_list = [] #包含所有sample名作为匹配关键词
for sampleset in valdata:
print(' ')
print('---->',sampleset,'有：',len(os.listdir(sampleset)),'个样本--------------------')
for e in os.listdir(sampleset):
print(e,end=" ")
key_list.append(e)
for sampleset in traindata:
print(' ')
print('---->',sampleset,'有：',len(os.listdir(sampleset)),'个样本--------------------')
for e in os.listdir(sampleset):
print(e,end=" ")
key_list.append(e)
all_data = valdata + traindata #包含所有数据的父路径的列表
----> /data/lyh/tianmoucData/tianmoucReconDataset/test/normal 有： 24 个样本--------------------
test_tunnel2 test_man_play_ball3 test_exam_fan4 test_driving24 test_driving3 test_driving20 indoor_office_5 outdoor_cross_10 test_running_man_8 test_cross3 outdoor_cross_13 outdoor_4huan_2 test_exam_full3 test_driving4 traffic4 test_driving12 test_driving16 outdoor_cross_6 traffic8 test_driving8 traffic12 outdoor_bridge_3 test_running_man_4 indoor_keyboard2
----> /data/lyh/tianmoucData/tianmoucReconDataset/test/extreme 有： 30 个样本--------------------
shake3 test_tunnel7_hdr_ae hdr_traffic36 test_exam_fan_QRcode_2 flicker_16 hdr_traffic21 hdr_traffic32 test_indoor_dog3 hdr_traffic24 train_exam_flicker5 hdr_people13 test_tunnel8_hdr_ae_double hdr_people8 flicker_13 hdr_traffic33 hdr_people4 test_exam_fan_QRcode_3 hdr_traffic31 indoor_selfie_shake_3 flicker_7 hdr_people16 flicker_10 flicker_2 hdr_people12 test_driving_night_light1 test_hdr_human2 underbridge_hdr_3 flicker_18 flicker_5 shake6
----> /data/lyh/tianmoucData/tianmoucReconDataset/train/normal 有： 67 个样本--------------------
outdoor_cross_8 train_cross2 traffic5 indoor_office_2 train_indoor_dog4 outdoor_cross_5 indoor_office_6 train_running_man_5 indoor_office_1 train_exam_fan2 indoor_office_3 people1 train_exam_fan5 indoor_office_4 indoor_slefie_2 outdoor_cross_9 outdoor_bridge_1 outdoor_cross_4 outdoor_cross_1 outdoor_4huan traffic15 outdoor_cross_12 outdoor_bridge_2 traffic9 traffic2 traffic_nohdr_16 traffic11 train_exam_fan1 train_indoor_dog1 train_cross3 train_driving5 traffic7 traffic_nohdr_15 train_driving14 train_driving9 outdoor_cross_7 train_driving4 traffic10 train_running_man_6 train_exam_fan3 train_driving6 train_cross4 train_driving3 outdoor_cross_3 train_driving11 traffic14 outdoor_bz_1 outdoor_hutong_1 indoor_slefie_1 indoor_keyboard1 train_man_play_ball1 train_driving8 traffic3 train_driving7 outdoor_cross_11 train_exam_full4 train_running_man_7 people10 traffic6 train_driving13 traffic13 traffic_nohdr_17 train_driving10 train_exam_full2 train_indoor_dog2 traffic1 train_exam_full1
----> /data/lyh/tianmoucData/tianmoucReconDataset/train/extreme 有： 51 个样本--------------------
flicker_12 underbridge_hdr_4 hdr_people9 train_exam_flicker3 underbridge_hdr_2 hdr_traffic35 hdr_people15 flicker_3 hdr_people2 train_tunnel3_hdr_ae hdr_traffic18 shake2 indoor_crazy_shake flicker_1 flicker_8 hdr_traffic20 underbridge_hdr_1 hdr_traffic30 train_exam_flicker2 hdr_traffic19 flicker_17 flicker_6 shake5 hdr_traffic23 train_exam_flicker1 train_hdr_human hdr_people5 hdr_people3 flicker_0 hdr_people11 train_tunnel6_hdr_ae flicker_4 flicker_9 flicker_11 flicker_15 hdr_people7 shake4 hdr_traffic26 train_tunnel4_hdr_ae hdr_traffic25 hdr_traffic29 train_tunnel1_hdr_blur shake1 train_driving2 hdr_traffic22 train_exam_fan_QRcode_1 hdr_people6 flicker_14 hdr_traffic34 hdr_people14 train_tunnel5_hdr_ae
融合图像
%autoreload
import torch.nn as nn
import math
import time
speedUpRate = 1
def images_to_video(frame_list,name,size=(640,320),Flip=False):
fps = 25
ftmax = max([np.max(ft) for ft in frame_list])
ftmin = min([np.min(ft) for ft in frame_list])
out = cv2.VideoWriter(name,0x7634706d , fps, size)
for ft in frame_list:
ft = (ft-ftmin)/(ftmax-ftmin)
ft2 = (ft*255).astype(np.uint8)
out.write(ft2)
out.release()
psnrcount =0
count = 0
key_list = ['test_tunnel7_hdr_ae']
for key in key_list:
dataset = TianmoucDataReader(all_data,MAXLEN=500*speedUpRate,matchkey=key,speedUpRate=speedUpRate)
dataLoader = torch.utils.data.DataLoader(dataset, batch_size=1,\
num_workers=4, pin_memory=False, drop_last = False)
PSNR = 0
img_list = []
for index,sample in enumerate(dataLoader,0):
if index<0:
continue
if index<= 20:
psnrcount += 1
F0 = sample['F0'][0,...]
raw_F0 = F0.clone()
#只有第0针可以合成
for t in [0]:
clear_output()
tsdiff = sample['rawDiff'][0,...]/128.0
SD = tsdiff[1:,t,...].permute(1,2,0)
Ix,Iy= SD2XY(SD)
Ix = F.interpolate(torch.Tensor(Ix).unsqueeze(0).unsqueeze(0), size=(320,640), mode='bilinear').squeeze(0).squeeze(0)
Iy = F.interpolate(torch.Tensor(Iy).unsqueeze(0).unsqueeze(0), size=(320,640), mode='bilinear').squeeze(0).squeeze(0)
blend_hdr = laplacian_blending(-Ix,-Iy, srcimg= F0,iteration=20, mask_rgb=True,mask_th=36)
blend_hdr_more_sd = laplacian_blending(-Ix,-Iy, srcimg= F0,iteration=20, mask_rgb=True,mask_th=48)#更激进的参数
show = torch.cat([raw_F0,blend_hdr],dim=0)
img_list.append(show.numpy()[...,[2,1,0]])
plt.figure(figsize=(12,6))
plt.subplot(1,3,1)
plt.imshow(F0)
plt.subplot(1,3,2)
plt.imshow(blend_hdr)
plt.subplot(1,3,3)
plt.imshow(blend_hdr_more_sd)
plt.show()
else:
break
Clipping input data to the valid range for imshow with RGB data ([0..1] for floats or [0..255] for integers).
Clipping input data to the valid range for imshow with RGB data ([0..1] for floats or [0..255] for integers).
导出视频
images_to_video(img_list,size=(640,640),name='./Direct_'+key+'.mp4')