网上下载了模板，根据实际结构体进行了修改。
版本2021
Fonte = 'Rebar';
len = size(imageLabelingSession.ImageFilenames,1);%size(labelingSession.ImageSet.ImageStruct,2);
for i=1: 1%len
path = imageLabelingSession.ImageFilenames{i};%labelingSession.ImageSet.ImageStruct(i).imageFilename; % resgata o endere?o completo da foto
VOC.annotation.path.Text = path;
% Separa o texto
expression = '\\';
splitStr = regexp(path,expression,'split');
% Nome da foto
foto = string(splitStr(size(splitStr,2)));
VOC.annotation.filename.Text = char(foto);
% Localiza o diretório
folder = string(splitStr(size(splitStr,2)-1));
VOC.annotation.folder.Text = char(folder); % Nome do diretório da foto
VOC.annotation.source.database.Text = Fonte; % Define a Fonte dos dados
% Características da Imagem
[height, width, depth] = size(imread(path));
VOC.annotation.size.width.Text = num2str(width);
VOC.annotation.size.height.Text = num2str(height);
VOC.annotation.size.depth.Text = num2str(depth);
% Segmenta??o
VOC.annotation.segmented.Text = '0'
number_bboxes = size(labelingSession.ImageSet.ImageStruct(i).objectBoundingBoxes,1);
for j=1:number_bboxes
% Objetos - Boundboxes
%Nome da Tag
categoryID = labelingSession.ImageSet.ImageStruct(i).catID(j);
VOC.annotation.object{1, j}.name.Text = labelingSession.CategorySet.CategoryStruct(categoryID).categoryName;
VOC.annotation.object{1, j}.pose.Text = 'Unspecified';
VOC.annotation.object{1, j}.truncated.Text = '0';
VOC.annotation.object{1, j}.difficult.Text = '0';
% Posi??o da BoundBox [x,y,width, height]
xmin = labelingSession.ImageSet.ImageStruct(i).objectBoundingBoxes(j);
ymin = labelingSession.ImageSet.ImageStruct(i).objectBoundingBoxes(j+ number_bboxes);
xmax = xmin + labelingSession.ImageSet.ImageStruct(i).objectBoundingBoxes(j+(2*number_bboxes));
ymax = ymin + labelingSession.ImageSet.ImageStruct(i).objectBoundingBoxes(j+(3*number_bboxes));
VOC.annotation.object{1, j}.bndbox.xmin.Text = xmin;
VOC.annotation.object{1, j}.bndbox.ymin.Text = ymin;
VOC.annotation.object{1, j}.bndbox.xmax.Text = xmax;
VOC.annotation.object{1, j}.bndbox.ymax.Text = ymax;
end
expression = '\.';
foto1 = regexp(foto,expression,'split');
nome = sprintf('%s.xml',foto1(1));
struct2xml(VOC,nome);
clear VOC;
end结构体
function varargout = struct2xml( s, varargin )
%Convert a MATLAB structure into a xml file
% [ ] = struct2xml( s, file )
% xml = struct2xml( s )
%
% A structure containing:
% s.XMLname.Attributes.attrib1 = "Some value";
% s.XMLname.Element.Text = "Some text";
% s.XMLname.DifferentElement{1}.Attributes.attrib2 = "2";
% s.XMLname.DifferentElement{1}.Text = "Some more text";
% s.XMLname.DifferentElement{2}.Attributes.attrib3 = "2";
% s.XMLname.DifferentElement{2}.Attributes.attrib4 = "1";
% s.XMLname.DifferentElement{2}.Text = "Even more text";
%
% Will produce:
% <XMLname attrib1="Some value">
% <Element>Some text</Element>
% <DifferentElement attrib2="2">Some more text</Element>
% <DifferentElement attrib3="2" attrib4="1">Even more text</DifferentElement>
% </XMLname>
%
% Please note that the following strings are substituted
% '_dash_' by '-', '_colon_' by ':' and '_dot_' by '.'
%
% Written by W. Falkena, ASTI, TUDelft, 27-08-2010
% On-screen output functionality added by P. Orth, 01-12-2010
% Multiple space to single space conversion adapted for speed by T. Lohuis, 11-04-2011
% Val2str subfunction bugfix by H. Gsenger, 19-9-2011
if (nargin ~= 2)
if(nargout ~= 1 || nargin ~= 1)
error(['Supported function calls:' sprintf('\n')...
'[ ] = struct2xml( s, file )' sprintf('\n')...
'xml = struct2xml( s )']);
end
end
if(nargin == 2)
file = varargin{1};
if (isempty(file))
error('Filename can not be empty');
end
if (isempty(strfind(file,'.xml')))
file = [file '.xml'];
end
end
if (~isstruct(s))
error([inputname(1) ' is not a structure']);
end
if (length(fieldnames(s)) > 1)
error(['Error processing the structure:' sprintf('\n') 'There should be a single field in the main structure.']);
end
xmlname = fieldnames(s);
xmlname = xmlname{1};
%substitute special characters
xmlname_sc = xmlname;
xmlname_sc = strrep(xmlname_sc,'_dash_','-');
xmlname_sc = strrep(xmlname_sc,'_colon_',':');
xmlname_sc = strrep(xmlname_sc,'_dot_','.');
%create xml structure
docNode = com.mathworks.xml.XMLUtils.createDocument(xmlname_sc);
%process the rootnode
docRootNode = docNode.getDocumentElement;
%append childs
parseStruct(s.(xmlname),docNode,docRootNode,[inputname(1) '.' xmlname '.']);
if(nargout == 0)
%save xml file
xmlwrite(file,docNode);
else
varargout{1} = xmlwrite(docNode);
end
end
% ----- Subfunction parseStruct -----
function [] = parseStruct(s,docNode,curNode,pName)
fnames = fieldnames(s);
for i = 1:length(fnames)
curfield = fnames{i};
%substitute special characters
curfield_sc = curfield;
curfield_sc = strrep(curfield_sc,'_dash_','-');
curfield_sc = strrep(curfield_sc,'_colon_',':');
curfield_sc = strrep(curfield_sc,'_dot_','.');
if (strcmp(curfield,'Attributes'))
%Attribute data
if (isstruct(s.(curfield)))
attr_names = fieldnames(s.Attributes);
for a = 1:length(attr_names)
cur_attr = attr_names{a};
%substitute special characters
cur_attr_sc = cur_attr;
cur_attr_sc = strrep(cur_attr_sc,'_dash_','-');
cur_attr_sc = strrep(cur_attr_sc,'_colon_',':');
cur_attr_sc = strrep(cur_attr_sc,'_dot_','.');
[cur_str,succes] = val2str(s.Attributes.(cur_attr));
if (succes)
curNode.setAttribute(cur_attr_sc,cur_str);
else
disp(['Warning. The text in ' pName curfield '.' cur_attr ' could not be processed.']);
end
end
else
disp(['Warning. The attributes in ' pName curfield ' could not be processed.']);
disp(['The correct syntax is: ' pName curfield '.attribute_name = ''Some text''.']);
end
elseif (strcmp(curfield,'Text'))
%Text data
[txt,succes] = val2str(s.Text);
if (succes)
curNode.appendChild(docNode.createTextNode(txt));
else
disp(['Warning. The text in ' pName curfield ' could not be processed.']);
end
else
%Sub-element
if (isstruct(s.(curfield)))
%single element
curElement = docNode.createElement(curfield_sc);
curNode.appendChild(curElement);
parseStruct(s.(curfield),docNode,curElement,[pName curfield '.'])
elseif (iscell(s.(curfield)))
%multiple elements
for c = 1:length(s.(curfield))
curElement = docNode.createElement(curfield_sc);
curNode.appendChild(curElement);
if (isstruct(s.(curfield){c}))
parseStruct(s.(curfield){c},docNode,curElement,[pName curfield '{' num2str(c) '}.'])
else
disp(['Warning. The cell ' pName curfield '{' num2str(c) '} could not be processed, since it contains no structure.']);
end
end
else
%eventhough the fieldname is not text, the field could
%contain text. Create a new element and use this text
curElement = docNode.createElement(curfield_sc);
curNode.appendChild(curElement);
[txt,succes] = val2str(s.(curfield));
if (succes)
curElement.appendChild(docNode.createTextNode(txt));
else
disp(['Warning. The text in ' pName curfield ' could not be processed.']);
end
end
end
end
end
%----- Subfunction val2str -----
function [str,succes] = val2str(val)
succes = true;
str = [];
if (isempty(val))
return; %bugfix from H. Gsenger
elseif (ischar(val))
%do nothing
elseif (isnumeric(val))
val = num2str(val);
else
succes = false;
end
if (ischar(val))
%add line breaks to all lines except the last (for multiline strings)
lines = size(val,1);
val = [val char(sprintf('\n')*[ones(lines-1,1);0])];
%transpose is required since indexing (i.e., val(nonspace) or val(:)) produces a 1-D vector.
%This should be row based (line based) and not column based.
valt = val';
remove_multiple_white_spaces = true;
if (remove_multiple_white_spaces)
%remove multiple white spaces using isspace, suggestion of T. Lohuis
whitespace = isspace(val);
nonspace = (whitespace + [zeros(lines,1) whitespace(:,1:end-1)])~=2;
nonspace(:,end) = [ones(lines-1,1);0]; %make sure line breaks stay intact
str = valt(nonspace');
else
str = valt(:);
end
end
end
效果
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