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python代碼xml轉(zhuǎn)txt實(shí)例

更新時(shí)間：2020年03月10日 09:49:56 作者：SunnyFish-ty

這篇文章主要介紹了python代碼xml轉(zhuǎn)txt實(shí)例，具有很好的參考價(jià)值，希望對(duì)大家有所幫助。一起跟隨小編過(guò)來(lái)看看吧

為了訓(xùn)練深度學(xué)習(xí)模型，經(jīng)常要整理大量的標(biāo)注數(shù)據(jù)，需統(tǒng)一不同格式的標(biāo)注數(shù)據(jù)，一般情況下習(xí)慣讀取TXT格式的數(shù)據(jù)。但實(shí)際中經(jīng)常遇到XML格式的標(biāo)注數(shù)據(jù)，在此舉例：1.讀取XML標(biāo)注數(shù)據(jù)；2.寫入TXT文件。

XML標(biāo)注數(shù)據(jù)如下

<annotation verified="no"> 
 <folder>suE</folder> 
 <filename>Drivingrecord_001</filename> 
 <path>C:\Desktop\Drivingrecord_001.jpg</path> 
 <source> 
  <database>Unknown</database> 
 </source> 
 <size> 
  <width>1920</width> 
  <height>1080</height> 
  <depth>3</depth> 
 </size> 
 <segmented>0</segmented> 
 <object> 
  <name>蘇E*****-藍(lán)-1-白,灰-大眾-上海大眾-桑塔納-尚納</name> 
  <flag>polygon</flag> 
  <pose>Unspecified</pose> 
  <truncated>0</truncated> 
  <difficult>0</difficult> 
  <bndbox> 
   <leftTopx>170</leftTopx> 
   <leftTopy>704</leftTopy> 
   <rightTopx>167</rightTopx> 
   <rightTopy>729</rightTopy> 
   <rightBottomx>242</rightBottomx> 
   <rightBottomy>735</rightBottomy> 
   <leftBottomx>243</leftBottomx> 
   <leftBottomy>710</leftBottomy> 
  </bndbox> 
 </object> 
 <object> 
  <name>蘇E*****-藍(lán)-1-黃-雷克薩斯-雷克薩斯(進(jìn)口)-雷克薩斯RX</name> 
  <flag>polygon</flag> 
  <pose>Unspecified</pose> 
  <truncated>0</truncated> 
  <difficult>0</difficult> 
  <bndbox> 
   <leftTopx>733</leftTopx> 
   <leftTopy>721</leftTopy> 
   <rightTopx>733</rightTopx> 
   <rightTopy>759</rightTopy> 
   <rightBottomx>881</rightBottomx> 
   <rightBottomy>760</rightBottomy> 
   <leftBottomx>882</leftBottomx> 
   <leftBottomy>722</leftBottomy> 
  </bndbox> 
 </object> 
 <object> 
  <name>蘇*****-藍(lán)-1-黑-寶馬-寶馬(進(jìn)口)-寶馬7系</name> 
  <flag>polygon</flag> 
  <pose>Unspecified</pose> 
  <truncated>0</truncated> 
  <difficult>0</difficult> 
  <bndbox> 
   <leftTopx>1274</leftTopx>

 <leftTopy>657</leftTopy> 
   <rightTopx>1274</rightTopx> 
   <rightTopy>671</rightTopy> 
   <rightBottomx>1325</rightBottomx> 
   <rightBottomy>670</rightBottomy> 
   <leftBottomx>1326</leftBottomx> 
   <leftBottomy>656</leftBottomy> 
  </bndbox> 
 </object> 
 <object> 
  <name>蘇*****-藍(lán)-1-灰-標(biāo)致-東風(fēng)標(biāo)致-標(biāo)致307</name> 
  <flag>polygon</flag> 
  <pose>Unspecified</pose> 
  <truncated>0</truncated> 
  <difficult>0</difficult> 
  <bndbox> 
   <leftTopx>1609</leftTopx> 
   <leftTopy>658</leftTopy> 
   <rightTopx>1611</rightTopx> 
   <rightTopy>671</rightTopy> 
   <rightBottomx>1659</rightBottomx> 
   <rightBottomy>669</rightBottomy> 
   <leftBottomx>1657</leftBottomx> 
   <leftBottomy>656</leftBottomy> 
  </bndbox> 
 </object> 
</annotation>

在此，我們只需要圖片名filename，和每個(gè)object的坐標(biāo)（四個(gè)點(diǎn)的坐標(biāo)）

Drivingrecord_001.jpg 170 704 167 729 242 735 243 710 733 721 733 759 881 760 882 722 1274 657 1274 671 1325 670 1326 656 1609 658 1611 671 1659 669 1657 656

利用xml.dom.*模塊，文件對(duì)象模塊DOM在讀取XML文件時(shí)，一次讀取整個(gè)文件，將其所有數(shù)據(jù)保存在一個(gè)樹結(jié)構(gòu)中，此時(shí)，可利用DOM的各種函數(shù)來(lái)讀取目標(biāo)數(shù)據(jù)。在此，利用xml.dom.minidom解析XML文件。

并將目標(biāo)數(shù)據(jù)寫入TXT文檔。

# -*- coding: utf-8 -*- 
""" 
Created on Fri Mar 2 15:36:44 2018 
 
@author: gg 
""" 
 
import xml.dom.minidom 
import os 
 
save_dir = 'D:\plate_train'  
if not os.path.exists(save_dir): 
  os.mkdir(save_dir) 
f = open(os.path.join(save_dir, 'landmark.txt'), 'w') 
 
DOMTree = xml.dom.minidom.parse('D:\plate_train\label\Drivingrecord_001.xml') 
annotation = DOMTree.documentElement 
 
filename = annotation.getElementsByTagName("filename")[0] 
imgname = filename.childNodes[0].data+'.jpg' 
print(imgname) 
   
objects = annotation.getElementsByTagName("object") 
 
loc = [imgname] #文檔保存格式：文件名 坐標(biāo) 
 
for object in objects: 
  bbox = object.getElementsByTagName("bndbox")[0] 
  leftTopx = bbox.getElementsByTagName("leftTopx")[0] 
  lefttopx = leftTopx.childNodes[0].data 
  print(lefttopx) 
  leftTopy = bbox.getElementsByTagName("leftTopy")[0] 
  lefttopy = leftTopy.childNodes[0].data 
  print(lefttopy) 
  rightTopx = bbox.getElementsByTagName("rightTopx")[0] 
  righttopx = rightTopx.childNodes[0].data 
  print(righttopx) 
  rightTopy = bbox.getElementsByTagName("rightTopy")[0] 
  righttopy = rightTopy.childNodes[0].data 
  print(righttopy) 
  rightBottomx = bbox.getElementsByTagName("rightBottomx")[0] 
  rightbottomx = rightBottomx.childNodes[0].data 
  print(rightbottomx) 
  rightBottomy = bbox.getElementsByTagName("rightBottomy")[0] 
  rightbottomy = rightBottomy.childNodes[0].data 
  print(rightbottomy) 
  leftBottomx = bbox.getElementsByTagName("leftBottomx")[0] 
  leftbottomx = leftBottomx.childNodes[0].data 
  print(leftbottomx) 
  leftBottomy = bbox.getElementsByTagName("leftBottomy")[0] 
  leftbottomy = leftBottomy.childNodes[0].data  
  print(leftbottomy) 
   
  loc = loc + [lefttopx, lefttopy, righttopx, righttopy, rightbottomx, rightbottomy, leftbottomx, leftbottomy] 
   
for i in range(len(loc)): 
  f.write(str(loc[i])+' ') 
f.write('\t\n')   
f.close()

以上這篇python代碼xml轉(zhuǎn)txt實(shí)例就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。

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