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AFLW_sqlite2txt.py
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AFLW_sqlite2txt.py
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#####################################################
# Copyright (C) 2017 Wan Sheng, NCTU, Taiwan
# ALL RIGHTS RESERVED
#####################################################
# import library
from random import shuffle
import sqlite3 as sq
# path setting
aflw_sq_path = '/HardDisk/WD/AFLW/aflw/data/aflw.sqlite'
# random shuffle or not
random_shuffle = True
# text file name
label_file_name = "aflw_label.txt"
# open the sqlite file which contains the informataion of AFLW dataset
aflw_sq = sq.connect(aflw_sq_path)
aflw_cur = aflw_sq.cursor()
print "Succesfully open the aflw.sqlite"
# show the tables in the database
aflw_cur.execute("SELECT name FROM sqlite_master WHERE type='table';")
table_name = aflw_cur.fetchall()
for item in table_name:
print item
# fetch image_name, face_rect and feature coordinates from db
faces = aflw_cur.execute("SELECT * FROM Faces")
face_ids = faces.fetchall();
face_names = []
face_rects = []
face_features = []
for i in range(len(face_ids)):
# get face_id and file_id
face_id = face_ids[i][0]
file_id_sqlite = "SELECT file_id FROM Faces WHERE face_id ='" + str(face_id) + "'"
file_id = aflw_cur.execute(file_id_sqlite).fetchall()
file_id = file_id[0][0]
if len(file_id) < 1:
continue
# get file_path
face_name_query = "SELECT filepath FROM FaceImages WHERE file_id = '"+ file_id + "'"
face_name = aflw_cur.execute(face_name_query).fetchall()
face_name = face_name[0][0]
# rect
feature_rect_query = "SELECT FaceRect.x,FaceRect.y,FaceRect.w,FaceRect.h FROM FaceRect WHERE face_id ='" + str(face_id) + "'"
feature_rect = aflw_cur.execute(feature_rect_query).fetchall()
if len(feature_rect) < 1:
continue
feature_rect = feature_rect[0]
x = feature_rect[0]
y = feature_rect[1]
w = feature_rect[2]
h = feature_rect[3]
# coor (normalize to 0~1)
feature_coor_query = "SELECT descr,FeatureCoords.x,FeatureCoords.y FROM FeatureCoords,FeatureCoordTypes WHERE face_id ='" + str(face_id) + "' AND FeatureCoords.feature_id = FeatureCoordTypes.feature_id"
feature_coor = aflw_cur.execute(feature_coor_query).fetchall()
coor_x = [-1 for k in range(5)]
coor_y = [-1 for k in range(5)]
for j in range(len(feature_coor)):
if feature_coor[j][0] == 'LeftEyeCenter':
coor_x[0] = (feature_coor[j][1] - x)/w
coor_y[0] = (feature_coor[j][2] - y)/h
elif feature_coor[j][0] == 'RightEyeCenter':
coor_x[1] = (feature_coor[j][1] - x)/w
coor_y[1] = (feature_coor[j][2] - y)/h
elif feature_coor[j][0] == 'NoseCenter':
coor_x[2] = (feature_coor[j][1] - x)/w
coor_y[2] = (feature_coor[j][2] - y)/h
elif feature_coor[j][0] == 'MouthLeftCorner':
coor_x[3] = (feature_coor[j][1] - x)/w
coor_y[3] = (feature_coor[j][2] - y)/h
elif feature_coor[j][0] == 'MouthRightCorner':
coor_x[4] = (feature_coor[j][1] - x)/w
coor_y[4] = (feature_coor[j][2] - y)/h
coor = []
coor.append(coor_x)
coor.append(coor_y)
# append to list
face_names.append(face_name)
face_rects.append(feature_rect)
face_features.append(coor)
aflw_cur.close()
aflw_sq.close()
# check list size
if len(face_names) != len(face_rects) or len(face_names) != len(face_features):
print "Inconsistent list size:"
print len(face_names), len(face_rects), len(face_features)
# record the list to the text file
label_file = open(label_file_name,"w")
label_file.write("image_name LeftEyeCenter.x LeftEyeCenter.y" + \
" RightEyeCenter.x RightEyeCenter.y" + \
" NoseCenter.x NoseCenter.y" + \
" MouthLeftCorner.x MouthLeftCorner.y" + \
" MouthRightCorner.x MouthRightCorner.y\n")
index = range(len(face_names))
if random_shuffle == True:
shuffle(index)
for i in index:
label_file.write(face_names[i] + " " + str(face_features[i][0][0]) + " " + str(face_features[i][1][0]) \
+ " " + str(face_features[i][0][1]) + " " + str(face_features[i][1][1]) \
+ " " + str(face_features[i][0][2]) + " " + str(face_features[i][1][2]) \
+ " " + str(face_features[i][0][3]) + " " + str(face_features[i][1][3]) \
+ " " + str(face_features[i][0][4]) + " " + str(face_features[i][1][4]) + "\n")
label_file.close()