function writeXML(cameraParams,file)
%writeXML(cameraParams,file)
%功能:将相机校正的参数保存为xml文件
%输入:
%cameraParams:相机校正数据结构
%file:xml文件名
%说明在xml文件是由一层层的节点组成的。
%首先创建父节点 fatherNode,
%然后创建子节点 childNode=docNode.createElement(childNodeName),
%再将子节点添加到父节点 fatherNode.appendChild(childNode)
docNode = com.mathworks.xml.XMLUtils.createDocument('opencv_storage'); %创建xml文件对象
docRootNode = docNode.getDocumentElement; %获取根节点
IntrinsicMatrix = ((cameraParams.IntrinsicMatrix)'); %*相机内参矩阵,千万记住要转置*
RadialDistortion = cameraParams.RadialDistortion; %相机径向畸变参数向量1*3
TangentialDistortion =cameraParams.TangentialDistortion; %相机切向畸变向量1*2
%Distortion = [RadialDistortion(1:2),TangentialDistortion,RadialDistortion(3)]; %当RadialDistortion为3维时,构成opencv中的畸变系数向量[k1,k2,p1,p2,k3]
Distortion = [RadialDistortion(1:2),TangentialDistortion,0]; %当RadialDistortion为2维时,构成opencv中的畸变系数向量[k1,k2,p1,p2,k3]
camera_matrix = docNode.createElement('camera-matrix'); %创建mat节点
camera_matrix.setAttribute('type_id','opencv-matrix'); %设置mat节点属性
rows = docNode.createElement('rows'); %创建行节点
rows.appendChild(docNode.createTextNode(sprintf('%d',3))); %创建文本节点,并作为行的子节点
camera_matrix.appendChild(rows); %将行节点作为mat子节点
cols = docNode.createElement('cols');
cols.appendChild(docNode.createTextNode(sprintf('%d',3)));
camera_matrix.appendChild(cols);
dt = docNode.createElement('dt');
dt.appendChild(docNode.createTextNode('d'));
camera_matrix.appendChild(dt);
data = docNode.createElement('data');
for i=1:3
for j=1:3
data.appendChild(docNode.createTextNode(sprintf('%.16f ',IntrinsicMatrix(i,j))));
end
data.appendChild(docNode.createTextNode(newline));
end
camera_matrix.appendChild(data);
docRootNode.appendChild(camera_matrix);
distortion = docNode.createElement('distortion');
distortion.setAttribute('type_id','opencv-matrix');
rows = docNode.createElement('rows');
rows.appendChild(docNode.createTextNode(sprintf('%d',5)));
distortion.appendChild(rows);
cols = docNode.createElement('cols');
cols.appendChild(docNode.createTextNode(sprintf('%d',1)));
distortion.appendChild(cols);
dt = docNode.createElement('dt');
dt.appendChild(docNode.createTextNode('d'));
distortion.appendChild(dt);
data = docNode.createElement('data');
for i=1:5
data.appendChild(docNode.createTextNode(sprintf('%.16f ',Distortion(i))));
end
distortion.appendChild(data);
docRootNode.appendChild(distortion);
xmlFileName = file;
xmlwrite(xmlFileName,docNode);
end