本代码可以把PASCAL Annottation Version 1.00的 .txt 数据转换为VOC格式的. xml 数据。
前提：得到 PASCAL Annotation Version 1.00 ，需要使用到其中的PASCALreadrecord.m文件。同时，我这里使用的数据集是INRIA数据集，所以只有一类目标（行人）。
代码如下：
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % PAS2XML.m % 作者：connie69 % 博客：http://blog.csdn.net/connie69 % 邮箱：conniechen9469@gmail.com % 时间：2016/8/16 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %% 得到所有文件列表 addpath('annotations'); %添加你存放标记文件的路径 annotList = dir('annotations/*.txt'); %得到该路径下的所有txt文件 annotListLen = length(annotList); % txt文件的数目 for i = 1:annotListLen % 由 PASCAL Annotaions Ver. 1.00 工具读取数据 fn = strcat('annotations/', annotList(i).name); %需要读取的文件名 record = PASreadrecord(fn); %读取数据 % 提取你所需的数据 imgname = record.imgname; idx = regexp(imgname,'/'); imgsize = record.imgsize; db = 'INRIA'; obj = record.objects; object_num = length(obj); % 建立一个xml文件，存储数据、 %这是你要存储的xml文件路径，比如我这个代码是存在当前工作目录下的‘Gen/Test/pos/文件名.xml’ path_data = strcat('Gen/Test/pos/', annotList(i).name(1:end-4)); path_data = strcat(path_data, '.xml'); %下面建立节点，我用缩进代表层级 %建立根节点，可以看作是第一级 annotation = com.mathworks.xml.XMLUtils.createDocument('annotation'); annotationRoot = annotation.getDocumentElement; %建立子节点，可以看作是第二级 folder = annotation.createElement('folder'); folder.appendChild(annotation.createTextNode(db)); annotationRoot.appendChild(folder); filename = annotation.createElement('filename'); filename.appendChild(annotation.createTextNode(imgname(idx(2)+1:end))); annotationRoot.appendChild(filename); source = annotation.createElement('source'); annotationRoot.appendChild(source); %建立该点的子节点，建立时用根节点建立，但是要依附到父节点而不是根节点，这里可以看作第三级 database = annotation.createElement('database');%用根节点建立 database.appendChild(annotation.createTextNode(db)); source.appendChild(database);%依附到父节点 annotaion_src = annotation.createElement('annotation'); annotaion_src.appendChild(annotation.createTextNode('PASCAL Annotaion Version 1.00')); source.appendChild(annotaion_src);% image = annotation.createElement('image'); image.appendChild(annotation.createTextNode('null')); source.appendChild(image);% flickrid_src = annotation.createElement('flickrid'); flickrid_src.appendChild(annotation.createTextNode('null')); source.appendChild(flickrid_src);% owner = annotation.createElement('owner'); annotationRoot.appendChild(owner); flickrid_own = annotation.createElement('flickrid'); flickrid_own.appendChild(annotation.createTextNode('null')); owner.appendChild(flickrid_own);% name = annotation.createElement('name'); name.appendChild(annotation.createTextNode('null')); owner.appendChild(name);% size = annotation.createElement('size'); annotationRoot.appendChild(size); width = annotation.createElement('width'); width.appendChild(annotation.createTextNode(num2str(imgsize(1)))); size.appendChild(width);% height = annotation.createElement('height'); height.appendChild(annotation.createTextNode(num2str(imgsize(2)))); size.appendChild(height);% depth = annotation.createElement('depth'); depth.appendChild(annotation.createTextNode(num2str(imgsize(3)))); size.appendChild(depth);% segmented = annotation.createElement('segmented'); segmented.appendChild(annotation.createTextNode('0')); annotationRoot.appendChild(segmented); for j = 1:object_num %%一张图中可能有多个目标，需要循环建立多个object标注 object = annotation.createElement('object'); annotationRoot.appendChild(object); name_obj = annotation.createElement('name'); name_obj.appendChild(annotation.createTextNode('person')); object.appendChild(name_obj);% pose = annotation.createElement('pose'); pose.appendChild(annotation.createTextNode(obj(j).orglabel)); object.appendChild(pose);% truncated = annotation.createElement('truncated'); truncated.appendChild(annotation.createTextNode('0')); object.appendChild(truncated);% difficult = annotation.createElement('difficult'); difficult.appendChild(annotation.createTextNode('0')); object.appendChild(difficult);% bndbox = annotation.createElement('bndbox'); object.appendChild(bndbox);% xmin = annotation.createElement('xmin'); xmin.appendChild(annotation.createTextNode(num2str(obj(j).bbox(1)))); bndbox.appendChild(xmin);% ymin = annotation.createElement('ymin'); ymin.appendChild(annotation.createTextNode(num2str(obj(j).bbox(2)))); bndbox.appendChild(ymin);% xmax = annotation.createElement('xmax'); xmax.appendChild(annotation.createTextNode(num2str(obj(j).bbox(3)))); bndbox.appendChild(xmax);% ymax = annotation.createElement('ymax'); ymax.appendChild(annotation.createTextNode(num2str(obj(j).bbox(4)))); bndbox.appendChild(ymax);% end xmlwrite(path_data,annotation); %% 写入xml文件 end生成的一个例子： <?xml version="1.0" encoding="utf-8"?> <annotation> <folder>INRIA</folder> <filename>crop001001.png</filename> <source> <database>INRIA</database> <annotation>PASCAL Annotaion Version 1.00</annotation> <image>null</image> <flickrid>null</flickrid> </source> <owner> <flickrid>null</flickrid> <name>null</name> </owner> <size> <width>818</width> <height>976</height> <depth>3</depth> </size> <segmented>0</segmented> <object> <name>person</name> <pose>UprightPerson</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <xmin>261</xmin> <ymin>109</ymin> <xmax>511</xmax> <ymax>705</ymax> </bndbox> </object> <object> <name>person</name> <pose>UprightPerson</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <xmin>31</xmin> <ymin>326</ymin> <xmax>209</xmax> <ymax>712</ymax> </bndbox> </object> <object> <name>person</name> <pose>UprightPerson</pose> <truncated>0</truncated> <difficult>0</difficult> <bndbox> <xmin>148</xmin> <ymin>179</ymin> <xmax>290</xmax> <ymax>641</ymax> </bndbox> </object> </annotation>
