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taskonomy_loader.py
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taskonomy_loader.py
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import torch.utils.data as data
from PIL import Image, ImageOps
import os
import os.path
import zipfile as zf
import io
import logging
import random
import copy
import numpy as np
import time
import torch
import multiprocessing
import warnings
import torchvision.transforms as transforms
from multiprocessing import Manager
class TaskonomyLoader(data.Dataset):
def __init__(self,
root,
label_set=['depth_zbuffer','normal','segment_semantic','edge_occlusion','reshading','keypoints2d','edge_texture'],
model_whitelist=None,
model_limit=None,
output_size=None,
convert_to_tensor=True,
return_filename=False,
half_sized_output=False,
augment=False):
manager=Manager()
self.root = root
self.model_limit=model_limit
self.records=[]
if model_whitelist is None:
self.model_whitelist=None
else:
self.model_whitelist = set()
with open(model_whitelist) as f:
for line in f:
self.model_whitelist.add(line.strip())
for i,(where, subdirs, files) in enumerate(os.walk(os.path.join(root,'rgb'))):
if subdirs!=[]: continue
model = where.split('/')[-1]
if self.model_whitelist is None or model in self.model_whitelist:
full_paths = [os.path.join(where,f) for f in files]
if isinstance(model_limit, tuple):
full_paths.sort()
full_paths = full_paths[model_limit[0]:model_limit[1]]
elif model_limit is not None:
full_paths.sort()
full_paths = full_paths[:model_limit]
self.records+=full_paths
#self.records = manager.list(self.records)
self.label_set = label_set
self.output_size = output_size
self.half_sized_output=half_sized_output
self.convert_to_tensor = convert_to_tensor
self.return_filename=return_filename
self.to_tensor = transforms.ToTensor()
self.augment = augment
if augment == "aggressive":
print('Data augmentation is on (aggressive).')
elif augment:
print('Data augmentation is on (flip).')
else:
print('no data augmentation')
self.last = {}
def process_image(self,im,input=False):
output_size=self.output_size
if self.half_sized_output and not input:
if output_size is None:
output_size=(128,128)
else:
output_size=output_size[0]//2,output_size[1]//2
if output_size is not None and output_size!=im.size:
im = im.resize(output_size,Image.BILINEAR)
bands = im.getbands()
if self.convert_to_tensor:
if bands[0]=='L':
im = np.array(im)
im.setflags(write=1)
im = torch.from_numpy(im).unsqueeze(0)
else:
with warnings.catch_warnings():
warnings.simplefilter("ignore")
im = self.to_tensor(im)
return im
def __getitem__(self, index):
"""
Args:
index (int): Index
Returns:
tuple: (image, target) where target is an uint8 matrix of integers with the same width and height.
If there is an error loading an image or its labels, simply return the previous example.
"""
with torch.no_grad():
file_name=self.records[index]
save_filename = file_name
flip_lr = (random.randint(0,1) > .5 and self.augment)
flip_ud = (random.randint(0,1) > .5 and (self.augment=="aggressive"))
pil_im = Image.open(file_name)
if flip_lr:
pil_im = ImageOps.mirror(pil_im)
if flip_ud:
pil_im = ImageOps.flip(pil_im)
im = self.process_image(pil_im,input=True)
error=False
ys = {}
mask = None
to_load = self.label_set
if len(set(['edge_occlusion','normal','reshading','principal_curvature']).intersection(self.label_set))!=0:
if os.path.isfile(file_name.replace('rgb','mask')):
to_load.append('mask')
elif 'depth_zbuffer' not in to_load:
to_load.append('depth_zbuffer')
for i in to_load:
if i=='mask' and mask is not None:
continue
yfilename = file_name.replace('rgb',i)
try:
yim = Image.open(yfilename)
except:
yim = self.last[i].copy()
error = True
if (i in self.last and yim.getbands() != self.last[i].getbands()) or error:
yim = self.last[i].copy()
try:
self.last[i]=yim.copy()
except:
pass
if flip_lr:
try:
yim = ImageOps.mirror(yim)
except:
pass
if flip_ud:
try:
yim = ImageOps.flip(yim)
except:
pass
try:
yim = self.process_image(yim)
except:
yim = self.last[i].copy()
yim = self.process_image(yim)
if i == 'depth_zbuffer':
yim = yim.float()
mask = yim < (2**13)
yim-=1500.0
yim/= 1000.0
elif i == 'edge_occlusion':
yim = yim.float()
yim-=56.0248
yim/=239.1265
elif i == 'keypoints2d':
yim = yim.float()
yim-=50.0
yim/=100.0
elif i == 'edge_texture':
yim = yim.float()
yim-=718.0
yim/=1070.0
elif i == 'normal':
yim = yim.float()
yim -=.5
yim *=2.0
if flip_lr:
yim[0]*=-1.0
if flip_ud:
yim[1]*=-1.0
elif i == 'reshading':
yim=yim.mean(dim=0,keepdim=True)
yim-=.4962
yim/=0.2846
#print('reshading',yim.shape,yim.max(),yim.min())
elif i == 'principal_curvature':
yim=yim[:2]
yim-=torch.tensor([0.5175, 0.4987]).view(2,1,1)
yim/=torch.tensor([0.1373, 0.0359]).view(2,1,1)
#print('principal_curvature',yim.shape,yim.max(),yim.min())
elif i == 'mask':
mask=yim.bool()
yim=mask
ys[i] = yim
if mask is not None:
ys['mask']=mask
# print(self.label_set)
# print('rgb' in self.label_set)
if not 'rgb' in self.label_set:
ys['rgb']=im
if self.return_filename:
return im, ys, file_name
else:
return im, ys
def __len__(self):
return (len(self.records))
def show(im, ys):
from matplotlib import pyplot as plt
plt.figure(figsize=(30,30))
plt.subplot(4,3,1).set_title('RGB')
im = im.permute([1,2,0])
plt.imshow(im)
#print(im)
#print(ys)
for i, y in enumerate(ys):
yim=ys[y]
plt.subplot(4,3,2+i).set_title(y)
if y=='normal':
yim+=1
yim/=2
if yim.shape[0]==2:
yim = torch.cat([yim,torch.zeros((1,yim.shape[1],yim.shape[2]))],dim=0)
yim = yim.permute([1,2,0])
yim = yim.squeeze()
plt.imshow(np.array(yim))
plt.show()
def test():
loader = TaskonomyLoader(
'/home/tstand/Desktop/lite_taskonomy/',
label_set=['normal','reshading','principal_curvature','edge_occlusion','depth_zbuffer'],
augment='aggressive')
totals= {}
totals2 = {}
count = {}
indices= list(range(len(loader)))
random.shuffle(indices)
for data_count, index in enumerate(indices):
im, ys=loader[index]
show(im,ys)
mask = ys['mask']
#mask = ~mask
print(index)
for i, y in enumerate(ys):
yim=ys[y]
yim = yim.float()
if y not in totals:
totals[y]=0
totals2[y]=0
count[y]=0
totals[y]+=(yim*mask).sum(dim=[1,2])
totals2[y]+=((yim**2)*mask).sum(dim=[1,2])
count[y]+=(torch.ones_like(yim)*mask).sum(dim=[1,2])
#print(y,yim.shape)
std = torch.sqrt((totals2[y]-(totals[y]**2)/count[y])/count[y])
print(data_count,'/',len(loader),y,'mean:',totals[y]/count[y],'std:',std)
def output_mask(index,loader):
from matplotlib import pyplot as plt
filename=loader.records[index]
filename=filename.replace('rgb','mask')
filename=filename.replace('/intel_nvme/taskonomy_data/','/run/shm/')
if os.path.isfile(filename):
return
print(filename)
x,ys = loader[index]
mask =ys['mask']
mask=mask.squeeze()
mask_im=Image.fromarray(mask.numpy())
mask_im = mask_im.convert(mode='1')
# plt.subplot(2,1,1)
# plt.imshow(mask)
# plt.subplot(2,1,2)
# plt.imshow(mask_im)
# plt.show()
path, _ = os.path.split(filename)
os.makedirs(path,exist_ok=True)
mask_im.save(filename,bits=1,optimize=True)
def get_masks():
import multiprocessing
loader = TaskonomyLoader(
'/intel_nvme/taskonomy_data/',
label_set=['depth_zbuffer'],
augment=False)
indices= list(range(len(loader)))
random.shuffle(indices)
for count,index in enumerate(indices):
print(count,len(indices))
output_mask(index,loader)
if __name__ == "__main__":
test()
#get_masks()