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 .. code:: ipython3 %load_ext autoreload 引入必要的库 ----------------------------------- .. code:: ipython3 %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 .. parsed-literal:: TianMouCV™ 0.3.5.4, via Y. Lin update new nn for reconstruction 数据读取 -------- .. code:: ipython3 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 .. parsed-literal:: ----> /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 -------- .. code:: ipython3 %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 .. parsed-literal:: 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). .. image:: output_7_1.png 导出视频 -------- .. code:: ipython3 images_to_video(img_list,size=(640,640),name='./Direct_'+key+'.mp4')