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# -*- coding: utf-8 -*-
"""
Created on Sat Sep 30 23:36:15 2017
@author: Xiaodan Du
"""
__author__ = 'Xiaodan Du'
__version__ = '1.0'
import json
from PIL import Image
from PIL import ImageFont
from PIL import ImageDraw
from pprint import pprint
import fileinput
import time
import matplotlib.pyplot as plt
import matplotlib.patches as patches
import matplotlib.image as mpimg
from matplotlib import rcParams
from matplotlib.lines import Line2D
from matplotlib.collections import PatchCollection
import numpy as np
import copy
import itertools
#from . import mask as maskUtils
import os
from collections import defaultdict
import sys
'''
This is a function to read the JSON file of HICO-DET dataset
index/id of image and cat(hoi) starts from 1 instead of 0
index/ids must be integer and must be within the total number
Default location of the JSON file:'C:\\Users\\du_xi\\Dropbox\\Research Shuai Tang\\list.json'
Default location of the images:'C:\\Users\\du_xi\\.spyder-py3\\hico_20160224_det'
Functions:
test_dim: returns the dimension of the input list
hicopy Class:
-checkMultiHoi: checks if an image has multiple hois
-createIndex: a helper function of the constructor to create the class variables
-getAllNname: returns a list of all object names
-getAllVname: returns a list of all verb names
-getCatIds: gets the hoi ids that contains given verbs and objects
-getHoiIds: returns the ids that contain certain verbs and objects
-getHoiIdsBasedOnVname: returns a list of all hoi ids that contain the given verb name
-getHoiIdsBasedOnNname: returns a list of all hoi ids that contain the given objective name
-getHoiNames: returns a list of hoi ids given image ids
-getHoiNum: returns the total number of hois
-getImgHoi: returns a list of hoi ids and a list of how many humans in each hoi of a given image id
-getImgId: a helper function of getImgIds
-getImgIds: given a list of image ids and a list of hoi ids, returns a list of the ids of the images that belong to the given hois
-getNnames: returns the names of given object ids
-getNnameIds: returns the ids of given object names
-getNumOfNoInteraction: returns the number of "no_interaction" humans of a given image id
-getObjectNum: returns the total number of objects
-getVerbNum: returns the total number of verbs
-getVnameIds: returns the ids of given verb names
-getVnames: returns the names of given verb ids
-hicopy: Object that contains all information of the given JSON file
-loadCats: returns a list of strings in the form of "verb object" with given hoi ids
-loadImgs: returns a list of images required
-readImgs: returns a list of images required (images are in np array format)
-visualize: visualize the bounding boxes and human-object interaction of a specific image
-visualize_box_conn_one: a helper function of visualize to create bounding boxes and lines
'''
def test_dim(testlist, dim=0):
"""
This is a function from the internect:"https://stackoverflow.com/questions/15985389/python-check-if-list-is-multidimensional-or-one-dimensional"
tests if testlist is a list and how many dimensions it has
returns -1 if it is no list at all, 0 if list is empty
and otherwise the dimensions of it
"""
if isinstance(testlist, list):
if testlist == []:
return dim
dim = dim + 1
dim = test_dim(testlist[0], dim)
return dim
else:
if dim == 0:
return -1
else:
return dim
class hicopy:
def __init__(self, annotation_file='C:\\Users\\du_xi\\Dropbox\\Research Shuai Tang\\list.json'):
"""
The constructor of hicopy class
input:
annotation_file: the location of the JSON file that contains all information. Default location only works for me. Please
change it to where you put the JSON file.
"""
self.dataset=dict()
self.anno_test=np.empty
self.anno_train=np.empty
self.bbox_test=list()
self.bbox_train=list()
self.list_action=list()
self.list_test=list()
self.list_train=list()
if not annotation_file == None:
print('loading annotations into memory...')
tic = time.time()
dataset = json.load(open(annotation_file, 'r'))
assert type(dataset)==dict, 'annotation file format {} not supported'.format(type(dataset))
print('Done (t={:0.2f}s)'.format(time.time()- tic))
self.dataset = dataset
self.createIndex()
def createIndex(self):
"""
This function creates the seven class members of hicopy objects
"""
# create index
print('creating index...')
anno_test=np.empty
anno_train=np.empty
bbox_test=list()
bbox_train=list()
list_action=list()
list_test=list()
list_train=list()
if 'anno_test' in self.dataset:
anno_test_list = self.dataset['anno_test']
anno_test_list = [[x if x !='null' else np.nan for x in y] for y in anno_test_list]
anno_test=np.array(anno_test_list)
if 'anno_train' in self.dataset:
anno_train_list = self.dataset['anno_train']
anno_train_list = [[x if x !='null' else np.nan for x in y] for y in anno_train_list]
anno_train=np.array(anno_train_list)
if 'list_test' in self.dataset:
list_test = self.dataset['list_test']
if 'list_train' in self.dataset:
list_train = self.dataset['list_train']
if 'bbox_test' in self.dataset:
bbox_test = self.dataset['bbox_test']
if 'bbox_train' in self.dataset:
bbox_train = self.dataset['bbox_train']
if 'list_action' in self.dataset:
list_action = self.dataset['list_action']
print('index created!')
# create class members
self.anno_test = anno_test
self.anno_train = anno_train
self.list_test = list_test
self.list_train = list_train
self.bbox_test = bbox_test
self.bbox_train = bbox_train
self.list_action = list_action
def getImgIds(self, imgIds=[], catIds=[]):
"""
inputs:
imgIds: a list of image ids
catIds: a list of hoi ids
outputs:
list(ids): a list of image ids that contain given hois
Note: If imgIds is empty, function will use all image ids as imgIds
If catIds is empty, fucntion will use all hoi ids as catIds
In case both imgIds and catIds are empty, function will return all hoi ids
"""
# ids=list()
# if dataType=='imgIds':
#
# for i in index:
# ids.append(self.list_train[i])
# elif dataYpe=='hoiIds':
# for i in index:
if len(imgIds) == len(catIds) == 0:
ids = self.list_train
else:
ids = set(imgIds)
for i, catId in enumerate(catIds):
if i == 0 and len(ids) == 0:
ids = set(self.getImgId(catId,imgIds))
else:
ids &= set(self.getImgId(catId,imgIds))
return list(ids)
def getImgId(self, catId,imgIds=[]):
"""
inputs:
catId: integer, id of hoi
imgIds: a list of image ids
outputs:
ids: a list of image ids that contain the given hoi
Note: If imgIds is empty, function will use all image ids as imgIds
"""
ids=list()
if len(imgIds)==0:
for i in range(len(self.bbox_train)):
hoiNum=self.checkMultiHoi('bbox_train',i)
if hoiNum==0:
if self.bbox_train[i]['hoi']['id']==catId:
ids.append(i+1)
else:
for j in range(hoiNum):
if self.bbox_train[i]['hoi'][j]['id']==catId:
ids.append(i+1)
break
else:
for i in imgIds:
hoiNum=self.checkMultiHoi('bbox_train',i-1)
if hoiNum==0:
if self.bbox_train[i-1]['hoi']['id']==catId:
ids.append(i)
else:
for j in range(hoiNum):
if self.bbox_train[i-1]['hoi'][j]['id']==catId:
ids.append(i)
break
return ids
def checkMultiHoi(self,key,i):
"""
inputs:
key: either 'bbox_train' or 'bbox_test'
i: the index of an image in bbox_train or bbox_test. Note: i starts from 0, so if you have
the index of a certain image, i should be index-1
outputs:
0: if the image has only 1 hoi
an integer n: if the image has n hois
nothing: if key is incorrect
"""
if key=='bbox_train':
if isinstance(self.bbox_train[i]['hoi'],dict):
return 0
else:
return len(self.bbox_train[i]['hoi'])
elif key=='bbox_test':
if isinstance(self.bbox_test[i]['hoi'],dict):
return 0
else:
return len(self.bbox_test[i]['hoi'])
else:
print('Wrong Type of "key". "bbox_train" or "bbox_test" only!')
return
def loadImgs(self, ids=[],hicolocation='C:\\Users\\du_xi\\.spyder-py3\\hico_20160224_det'):
"""
inputs:
ids: a list of image ids that are to be loaded
hicolocation: the location of all the images. Default location only works for my computer. Please change.
outputs:
imgs: a list of images
Note: ids cannot be empty.
This function uses Image.open() to load images. If you want a 3D np array, please chceck readImgs() in this class.
"""
imgs=list()
for i in ids:
fileName=self.list_train[i-1]
im_file=hicolocation+'\\images\\train2015\\'+fileName
img = Image.open(im_file)
imgs.append(img)
#img.show()
return imgs
def readImgs(self,ids=[],hicolocation='C:\\Users\\du_xi\\.spyder-py3\\hico_20160224_det'):
"""
inputs:
ids: a list of image ids that are to be loaded
hicolocation: the location of all the images. Default location only works for my computer. Please change.
outputs:
imgs: a list of images (in np array format)
Note:
Dimension of the np array: (height,width,R-G-B)
"""
imgs=list()
for i in ids:
fileName=self.list_train[i-1]
im_file=hicolocation+'\\images\\train2015\\'+fileName
img = mpimg.imread(im_file)
imgs.append(img)
#img.show()
return imgs
def getCatIds(self, catVNms=[],catNNms=[]):
"""
inputs:
catVNms: a list of string of verb names
catNNms: a list of string of object names
outputs:
sorted(list(cats)): a sorted list of hoi ids that satisfy both given verbs and objects
Note:
If catVNms is empty, the function will use all verbs as catVNms
If catNNms is empty, the function will use all objects as catNNms
In case both inputs are empty, the function will directly return a list of all hoi ids
"""
if len(catVNms) == len(catNNms) == 0:
cats = list(range(1,len(self.list_action)+1))
else:
cats = list(range(1,len(self.list_action)+1))
catsV = cats if len(catVNms) == 0 else [cat for cat in cats if self.list_action[cat-1]['vname'] in catVNms]
catsN = cats if len(catNNms) == 0 else [cat for cat in cats if self.list_action[cat-1]['nname'] in catNNms]
catsV=set(catsV)
catsN=set(catsN)
cats=catsV&catsN
return sorted(list(cats))
def loadCats(self, ids=[]):
"""
Load cats with the specified ids.
:param ids (int list) : integer ids specifying hois
:return: cats (string list) : "verb"+" "+"object"
Note:
If ids is empty, the function returns nothing.
"""
if len(ids)==0:
return
else:
hoi=list()
for i in ids:
hoi.append(self.list_action[i-1]['vname']+' '+self.list_action[i-1]['nname'])
return hoi
def getHoiNames(self, ids=[]):
"""
inputs:
ids: a list of hoi ids
outputs:
hoiIds: a list of string of names of given hoi ids
Note:
If ids is empty, the function will return nothing
Elements in ids must be valid ids (integers larger than 0 and smaller or equal to 600)
"""
if len(ids)==0:
return
else:
hoiIds=list()
for i in ids:
hoiNum=self.checkMultiHoi('bbox_train',i-1)
if hoiNum==0:
hoiIds.append(self.bbox_train[i-1]['hoi']['id'])
else:
hoiIds.append([self.bbox_train[i-1]['hoi'][j]['id'] for j in range(hoiNum)])
return hoiIds
def visualize(self,imageIndex,hoiIndex=[],hicolocation='C:\\Users\\du_xi\\.spyder-py3\\hico_20160224_det'):
"""
inputs:
imageIndex: a list of an integer of image id
hoiIndex: a list or an integer of hoi id
hicolocation: the location of all the images. Default location only works for my computer. Please change.
outputs:
visualization of annotations
"""
if isinstance(imageIndex,list) and len(imageIndex)==0:
return
if isinstance(hoiIndex,int) and hoiIndex>0 and hoiIndex<=600:
for i in imageIndex:
fileName=self.bbox_train[i-1]['filename']
im_file=hicolocation+'\\images\\train2015\\'+fileName
if isinstance(self.bbox_train[i-1]['hoi'],dict):
hoi_invis=self.bbox_train[i-1]['hoi']['invis']
if self.bbox_train[i-1]['hoi']['id']==hoiIndex:
hoi_id = hoiIndex
else:
print('Image does not have such hoi.')
return
bboxhuman=self.bbox_train[i-1]['hoi']['bboxhuman']
bboxobject=self.bbox_train[i-1]['hoi']['bboxobject']
connection=self.bbox_train[i-1]['hoi']['connection']
else:
imageHois=list()
for j, hoiId in enumerate(self.bbox_train[i-1]['hoi']):
imageHois.append(hoiId['id'])
if hoiIndex in imageHois:
k = imageHois.index(hoiIndex)
hoi_invis=self.bbox_train[i-1]['hoi'][k]['invis']
hoi_id = self.bbox_train[i-1]['hoi'][k]['id']
bboxhuman=self.bbox_train[i-1]['hoi'][k]['bboxhuman']
bboxobject=self.bbox_train[i-1]['hoi'][k]['bboxobject']
connection=self.bbox_train[i-1]['hoi'][k]['connection']
else:
print('Image does not have such hoi.')
return
aname = self.list_action[hoi_id]['vname_ing']+' '+self.list_action[hoi_id]['nname']
img=mpimg.imread(im_file)
fig,ax = plt.subplots(1)
imgplot = plt.imshow(img)
plt.axis('off')
plt.title(aname,fontSize=48,color='black')
print(self.bbox_train[i-1])
if hoi_invis:
print('hoi not visible\n')
else:
self.visualize_box_conn_one(ax,bboxhuman, bboxobject, connection, 'b','g','r')
rcParams['figure.figsize'] = [20, 20]
plt.show()
else:
for i in imageIndex:
fileName=self.bbox_train[i-1]['filename']
im_file=hicolocation+'\\images\\train2015\\'+fileName
img = Image.open(im_file)
img.show()
def visualize_box_conn_one(self, ax,bboxhuman, bboxobject, connection, color1='b',color2='g',color3='r'):
if isinstance(bboxhuman,list):
for r in range(len(bboxhuman)):
rt = [bboxhuman[r]['x1'], bboxhuman[r]['y1'], bboxhuman[r]['x2']-bboxhuman[r]['x1']+1, bboxhuman[r]['y2']-bboxhuman[r]['y1']+1]
rect = patches.Rectangle((rt[0],rt[1]),rt[2],rt[3],linewidth=4,edgecolor=color1,facecolor='none')
ax.add_patch(rect)
else:
rt = [bboxhuman['x1'], bboxhuman['y1'], bboxhuman['x2']-bboxhuman['x1']+1, bboxhuman['y2']-bboxhuman['y1']+1]
rect=patches.Rectangle((rt[0],rt[1]),rt[2],rt[3],linewidth=4,edgecolor=color1,facecolor='none')
ax.add_patch(rect)
if isinstance(bboxobject,list):
for r in range(len(bboxobject)):
rt = [bboxobject[r]['x1'], bboxobject[r]['y1'], bboxobject[r]['x2']-bboxobject[r]['x1']+1, bboxobject[r]['y2']-bboxobject[r]['y1']+1]
rect2 = patches.Rectangle((rt[0],rt[1]),rt[2],rt[3],linewidth=4,edgecolor=color2,facecolor='none')
ax.add_patch(rect2)
else:
rt = [bboxobject['x1'], bboxobject['y1'], bboxobject['x2']-bboxobject['x1']+1, bboxobject['y2']-bboxobject['y1']+1]
rect2=patches.Rectangle((rt[0],rt[1]),rt[2],rt[3],linewidth=4,edgecolor=color2,facecolor='none')
ax.add_patch(rect2)
if test_dim(connection)==1:
rt1=bboxhuman
rt2=bboxobject
ct1 = [(rt1['x1']+rt1['x2'])/2, (rt1['y1']+rt1['y2'])/2]
ct2 = [(rt2['x1']+rt2['x2'])/2, (rt2['y1']+rt2['y2'])/2]
markers_on = [0, -1]
line = Line2D([ct1[0],ct2[0]],[ct1[1],ct2[1]],linewidth=4,color=color3,markevery=markers_on,marker='o',markersize=10,markerfacecolor=color3)
ax.add_line(line)
else:
for r in range(len(connection)):
rt1=bboxhuman[connection[r][0]-1]
rt2=bboxobject[connection[r][1]-1]
ct1 = [(rt1['x1']+rt1['x2'])/2, (rt1['y1']+rt1['y2'])/2]
ct2 = [(rt2['x1']+rt2['x2'])/2, (rt2['y1']+rt2['y2'])/2]
markers_on = [0, -1]
line = Line2D([ct1[0],ct2[0]],[ct1[1],ct2[1]],linewidth=4,color=color3,markevery=markers_on,marker='o',markersize=10,markerfacecolor=color3)
ax.add_line(line)
def getAllNname(self):
allNname=list()
for i in range(len(self.list_action)):
if self.list_action[i]['nname'] not in allNname:
allNname.append(self.list_action[i]['nname'])
return sorted(allNname)
def getAllVname(self):
allVname=list()
for i in range(len(self.list_action)):
if self.list_action[i]['vname'] not in allVname:
allVname.append(self.list_action[i]['vname'])
return sorted(allVname)
def getNnames(self,index):
"""
inputs:
index: a list or an integer of object ids
outputs:
a list of names of given objects
Note:
If index is empty, the function will return all object names
"""
allNname=self.getAllNname()
if index==[]:
return allNname
return [allNname[i-1] for i in index] if isinstance(index,list) else allNname[index-1]
def getVnames(self,index):
"""
inputs:
index: a list or an integer of verb ids
outputs:
a list of names of given verbs
Note:
If index is empty, the function will return all verb names
"""
allVname=self.getAllVname()
if index==[]:
return allVname
return [allVname[i-1] for i in index] if isinstance(index,list) else allVname[index-1]
def getNnameIds(self,nname):
"""
inputs:
nname: a list or an integer of object ids
outputs:
a list of ids of given object names
Note:
If nname is empty, the function will return a list of all object ids
"""
allNname=self.getAllNname()
if nname==[]:
return sorted(range(1,self.getObjectNum()+1))
return [allNname.index(i)+1 for i in nname] if isinstance(nname,list) else allNname.index(nname)+1
def getVnameIds(self,vname):
"""
inputs:
vname: a list or an integer of verb ids
outputs:
a list of ids of given verb names
Note:
If vname is empty, the function will return a list of all verb ids
"""
allVname=self.getAllVname()
if vname==[]:
return sorted(range(1,self.getVerbNum()+1))
return [allVname.index(i)+1 for i in vname] if isinstance(vname,list) else allVname.index(vname)+1
def getVerbNum(self):
"""
outputs:
an integer of the total types of verbs
"""
return len(self.getAllVname())
def getObjectNum(self):
"""
outputs:
an integer of the total types of objectives
"""
return len(self.getAllNname())
def getHoiNum(self):
"""
outputs:
an integer of the total types of hois
"""
return len(self.list_action)
def getHoiIds(self,**vn):
"""
inputs:
**vn: input keys can only be "vname" or "nname".
"vname": a list of strings of verb names
"nname": a list of strings of object names
outputs:
sorted(HoiIds): a sorted list of hoi ids
"""
if any(key=='vname' or 'nname' for key in vn)==0:
return sorted(range(1,self.getHoiNum()+1))
if all(key=='vname' or 'nname' for key in vn)==0:
print('Inputs can only be "vname" or "nname"!')
return
if 'vname' in vn:
vHoiIds=set(self.getHoiIdsBasedOnVname(vn['vname']))
else:
vHoiIds=set(range(1,self.getHoiNum()+1))
if 'nname' in vn:
nHoiIds=set(self.getHoiIdsBasedOnNname(vn['nname']))
else:
nHoiIds=set(range(1,self.getHoiNum()+1))
HoiIds=vHoiIds&nHoiIds
return sorted(HoiIds)
def getHoiIdsBasedOnVname(self,vname):
"""
inputs:
vname: a list of verb names
outputs:
sorted(HoiIds): a sorted list of hoi ids
"""
HoiIds=list()
if vname==[]:
vname = self.getVnameIds(vname)
if isinstance(vname,list):
for i in range(self.getHoiNum()):
if self.list_action[i]['vname'] in self.getVnames(vname):
HoiIds.append(i+1)
else:
for i in range(self.getHoiNum()):
if self.list_action[i]['vname'] == self.getVnames(vname):
HoiIds.append(i+1)
return sorted(HoiIds)
def getHoiIdsBasedOnNname(self,nname):
"""
inputs:
nname: a list of object names
outputs:
sorted(HoiIds): a sorted list of hoi ids
"""
HoiIds=list()
if nname==[]:
nname = self.getNnameIds(nname)
if isinstance(nname,list):
for i in range(self.getHoiNum()):
if self.list_action[i]['nname'] in self.getNnames(nname):
HoiIds.append(i+1)
else:
for i in range(self.getHoiNum()):
if self.list_action[i]['nname'] == self.getNnames(nname):
HoiIds.append(i+1)
return sorted(HoiIds)
def getNnameIdsBasedOnHoiId(self,hoiId):
"""
inputs:
hoiId: an integer of hoi id
outputs:
nnameId: an integer of the id of the object in the given hoi
"""
nname=self.list_action[hoiId-1]['nname']
nnameId=self.getNnameIds(nname)
return nnameId
def getVnameIdsBasedOnHoiId(self,hoiId):
"""
inputs:
hoiId: an integer of hoi id
outputs:
vnameId: an integer of the id of the verb in the given hoi
"""
vname=self.list_action[hoiId-1]['vname']
vnameId=self.getVnameIds(vname)
return vnameId
def getImgHoi(self,index):
"""
inputs:
index: an integer of the id of an image
outputs:
imgHoi: an integer of the hoi id of the given image
personNum: the number of humans in the image
"""
imgHoi=list()
personNum=list()
if isinstance(self.bbox_train[index-1]['hoi'],list):
for currHoi in self.bbox_train[index-1]['hoi']:
imgHoi.append(currHoi['id'])
if isinstance(currHoi['bboxhuman'],dict):
personNum.append(1)
elif isinstance(currHoi['bboxhuman'],list):
personNum.append(len(currHoi['bboxhuman']))
else:
personNum.append(0)
elif isinstance(self.bbox_train[index-1]['hoi'],dict):
imgHoi.append(self.bbox_train[index-1]['hoi']['id'])
if isinstance(self.bbox_train[index-1]['hoi']['bboxhuman'],dict):
personNum.append(1)
elif isinstance(self.bbox_train[index-1]['hoi']['bboxhuman'],list):
personNum.append(len(self.bbox_train[index-1]['hoi']['bboxhuman']))
else:
personNum.append(0)
return imgHoi,personNum
def getNumOfNoInteraction(self,index):
"""
inputs:
index: an integer of the id of an image
outputs:
noInteraction: the number of "no_interaction" in a given image
"""
imgHoi,personNum=self.getImgHoi(index)
noInteraction=0
noInteractionId=self.getVnameIds(['no_interaction'])[0]
for i,hoi in enumerate(imgHoi):
if self.getVnameIdsBasedOnHoiId(hoi)==noInteractionId:
noInteraction=noInteraction+personNum[i]
return noInteraction
\ No newline at end of file
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