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ego_to_json.py
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import os
import shutil
import json
import scipy.io
import random
# ego_to_json.py maakt egohands_data bruikbaar om om te laten zetten naar de verschillende
# formaten voor de netwerken.
#drie folders, train, test, val
# |-- train
# | | -- images
# | | -- annotations.json
# |-- val
# | | -- images
# | | -- annotations.json
# |-- test
# | | -- images
# | | -- annotations.json
# annotations.json:
# {
# "CARDS_OFFICE_H_T_frame_0001.jpg":
# {
# "name": "CARDS_OFFICE_H_T_frame_0001.jpg",
# "objects": [[]]
# },
# "CARDS_OFFICE_H_T_frame_0002.jpg":
# {
# "name": "CARDS_OFFICE_H_T_frame_0002.jpg",
# "objects": [[]]
# }
# }
ROOT_DIR = "../egohands_data"
ANNOTATION_FILE = "polygons.mat"
SAVE_FILE = "annotations.json"
def split_test():
os.makedirs(os.path.join(ROOT_DIR, "test"))
os.makedirs(os.path.join(ROOT_DIR, "val"))
os.makedirs(os.path.join(ROOT_DIR, "train"))
shutil.move(os.path.join(ROOT_DIR, "CARDS_COURTYARD_B_T"), os.path.join(ROOT_DIR, "test", "CARDS_COURTYARD_B_T"))
shutil.move(os.path.join(ROOT_DIR, "CARDS_OFFICE_S_B"), os.path.join(ROOT_DIR, "test", "CARDS_OFFICE_S_B"))
shutil.move(os.path.join(ROOT_DIR, "CHESS_COURTYARD_B_T"), os.path.join(ROOT_DIR, "test", "CHESS_COURTYARD_B_T"))
shutil.move(os.path.join(ROOT_DIR, "CHESS_LIVINGROOM_T_H"), os.path.join(ROOT_DIR, "test", "CHESS_LIVINGROOM_T_H"))
shutil.move(os.path.join(ROOT_DIR, "JENGA_LIVINGROOM_S_T"), os.path.join(ROOT_DIR, "test", "JENGA_LIVINGROOM_S_T"))
shutil.move(os.path.join(ROOT_DIR, "JENGA_OFFICE_H_T"), os.path.join(ROOT_DIR, "test", "JENGA_OFFICE_H_T"))
shutil.move(os.path.join(ROOT_DIR, "PUZZLE_COURTYARD_H_T"), os.path.join(ROOT_DIR, "test", "PUZZLE_COURTYARD_H_T"))
shutil.move(os.path.join(ROOT_DIR, "PUZZLE_LIVINGROOM_T_B"), os.path.join(ROOT_DIR, "test", "PUZZLE_LIVINGROOM_T_B"))
shutil.move(os.path.join(ROOT_DIR, "CARDS_LIVINGROOM_S_H"), os.path.join(ROOT_DIR, "val", "CARDS_LIVINGROOM_S_H"))
shutil.move(os.path.join(ROOT_DIR, "CHESS_COURTYARD_H_S"), os.path.join(ROOT_DIR, "val", "CHESS_COURTYARD_H_S"))
shutil.move(os.path.join(ROOT_DIR, "JENGA_COURTYARD_T_S"), os.path.join(ROOT_DIR, "val", "JENGA_COURTYARD_T_S"))
shutil.move(os.path.join(ROOT_DIR, "PUZZLE_OFFICE_S_T"), os.path.join(ROOT_DIR, "val", "PUZZLE_OFFICE_S_T"))
train = ['CARDS_COURTYARD_H_S','CARDS_COURTYARD_S_H','CARDS_COURTYARD_T_B','CARDS_LIVINGROOM_B_T','CARDS_LIVINGROOM_H_S','CARDS_LIVINGROOM_T_B','CARDS_OFFICE_B_S','CARDS_OFFICE_H_T','CARDS_OFFICE_T_H','CHESS_COURTYARD_S_H','CHESS_COURTYARD_T_B','CHESS_LIVINGROOM_B_S','CHESS_LIVINGROOM_H_T','CHESS_LIVINGROOM_S_B','CHESS_OFFICE_B_S','CHESS_OFFICE_H_T','CHESS_OFFICE_S_B','CHESS_OFFICE_T_H','JENGA_COURTYARD_B_H','JENGA_COURTYARD_H_B','JENGA_COURTYARD_S_T','JENGA_LIVINGROOM_B_H','JENGA_LIVINGROOM_H_B','JENGA_LIVINGROOM_T_S','JENGA_OFFICE_B_S','JENGA_OFFICE_S_B','JENGA_OFFICE_T_H','PUZZLE_COURTYARD_B_S','PUZZLE_COURTYARD_S_B','PUZZLE_COURTYARD_T_H','PUZZLE_LIVINGROOM_B_T','PUZZLE_LIVINGROOM_H_S','PUZZLE_LIVINGROOM_S_H','PUZZLE_OFFICE_B_H','PUZZLE_OFFICE_H_B','PUZZLE_OFFICE_T_S']
for folder in train:
shutil.move(os.path.join(ROOT_DIR, folder), os.path.join(ROOT_DIR, "train", folder))
def json_test():
# test_dir = os.path.join(ROOT_DIR, "test")
# os.makedirs(os.path.join(test_dir, "images"))
# img_dir = os.path.join(test_dir, "images")
# create_annotations(test_dir,img_dir)
# val_dir = os.path.join(ROOT_DIR, "val")
# os.makedirs(os.path.join(val_dir, "images"))
# img_dir = os.path.join(val_dir, "images")
# create_annotations(val_dir,img_dir)
train_dir = os.path.join(ROOT_DIR, "train")
# os.makedirs(os.path.join(train_dir, "images"))
img_dir = os.path.join(train_dir, "images")
create_annotations(train_dir,img_dir)
def json_train_val():
os.makedirs(os.path.join(ROOT_DIR, "tmp"))
tmp_dir = os.path.join(ROOT_DIR, "tmp")
os.makedirs(os.path.join(tmp_dir, "images"))
img_dir = os.path.join(tmp_dir, "images")
for dir_name in os.listdir(ROOT_DIR):
if not (dir_name == "tmp" or dir_name == "test"):
shutil.move(os.path.join(ROOT_DIR, dir_name), os.path.join(ROOT_DIR, tmp_dir, dir_name))
create_annotations(tmp_dir, img_dir)
def create_annotations(directory, img_dir):
annotations = {}
for dir_name in os.listdir(directory):
if not (dir_name == "images"):
for _, _, files in os.walk(os.path.join(directory, dir_name)):
mat = scipy.io.loadmat(os.path.join(directory, dir_name, ANNOTATION_FILE))
for i, img_file in enumerate(sorted(files)):
if not (img_file.endswith(".mat")):
new_img_file = dir_name + "_" + img_file
image = {
"name": new_img_file,
"objects": []
}
for segmentation in mat["polygons"][0][i]:
if segmentation.any():
image["objects"].append(segmentation.tolist())
annotations[new_img_file] = image
shutil.move(os.path.join(directory, dir_name, img_file), os.path.join(img_dir, new_img_file))
with open(os.path.join(directory, SAVE_FILE), 'w') as output_json_file:
json.dump(annotations, output_json_file)
for dir_name in os.listdir(directory):
if not (dir_name == "images" or dir_name == "annotations.json"):
shutil.rmtree(os.path.join(directory, dir_name))
def split_train_val():
tmp_dir = os.path.join(ROOT_DIR, "tmp")
os.makedirs(os.path.join(ROOT_DIR, "train"))
train_dir = os.path.join(ROOT_DIR, "train")
os.makedirs(os.path.join(train_dir, "images"))
os.makedirs(os.path.join(ROOT_DIR, "val"))
val_dir = os.path.join(ROOT_DIR, "val")
os.makedirs(os.path.join(val_dir, "images"))
# Opening JSON file
with open(os.path.join(tmp_dir, 'annotations.json')) as json_file:
data = json.load(json_file)
# 0.1765 is 15% van 100% omdat test al 20 % is (niet helemaal)
val_keys = random.sample(list(data), round(len(data) * 0.1765))
validation = {k: v for k, v in data.items() if k in val_keys}
train = {k: v for k, v in data.items() if k not in val_keys}
with open(os.path.join(val_dir, SAVE_FILE), 'w') as output_json_file:
json.dump(validation, output_json_file)
with open(os.path.join(train_dir, SAVE_FILE), 'w') as output_json_file:
json.dump(train, output_json_file)
for key, _ in validation.items():
shutil.move(os.path.join(tmp_dir, "images", key), os.path.join(val_dir, "images", key))
for key, _ in train.items():
shutil.move(os.path.join(tmp_dir, "images", key), os.path.join(train_dir, "images"))
shutil.rmtree(tmp_dir)
def move_to_folder():
os.makedirs(os.path.join(ROOT_DIR, "json"))
json_dir = os.path.join(ROOT_DIR, "json")
shutil.move(os.path.join(ROOT_DIR, "test"), json_dir)
shutil.move(os.path.join(ROOT_DIR, "val"), json_dir)
shutil.move(os.path.join(ROOT_DIR, "train"), json_dir)
shutil.move(ROOT_DIR, "../data")
# split_test()
json_test()
# json_train_val()
# split_train_val()
move_to_folder()