voc2007 数据集随机分割代码

import os
import random

trainval_percent = 0.85
train_percent = 0.7
xmlfilepath = 'D:\Project\Bi-Ye\data-xml\VOC2007\Annotations'
txtsavepath = 'ImageSets\Main'
print(txtsavepath)
total_xml = os.listdir(xmlfilepath)

num = len(total_xml)
list = range(num)
tv = int(num*trainval_percent)
tr = int(tv*train_percent)
trainval = random.sample(list, tv)
train = random.sample(trainval, tr)

ftrainval = open('D://Project//Bi-Ye//data-xml//VOC2007//ImagesSet/Main/trainval.txt', 'w')
ftest = open('D://Project//Bi-Ye//data-xml//VOC2007//ImagesSet//Main//test.txt', 'w')
ftrain = open('D://Project//Bi-Ye//data-xml//VOC2007//ImagesSet//Main//train.txt', 'w')
fval = open('D://Project//Bi-Ye//data-xml//VOC2007//ImagesSet//Main//val.txt', 'w')

for i in list:
    name = total_xml[i][:-4]+'\n'
    if i in trainval:
        ftrainval.write(name)
        if i in train:
            ftrain.write(name)
        else:
            fval.write(name)
    else:
        ftest.write(name)

ftrainval.close()
ftrain.close()
fval.close()
ftest .close()