How to change data in XML file?Matlab

Question

Hi i know there have been asked many questions regarding changing content of XML in Matlab. But i tried different answers to this question(present on SO) but they did not work in my case. Here is my XML file structure

<annotation>
    <folder>n02749479</folder>
    <filename>n02749479_54</filename>
    <source>
        <database>ImageNet database</database>
    </source>
    <size>
        <width>500</width>
        <height>277</height>
        <depth>3</depth>
    </size>
    <segmented>0</segmented>
    <object>
        <name>n02749479</name>
        <pose>Unspecified</pose>
        <truncated>0</truncated>
        <difficult>0</difficult>
        <bndbox>
            <xmin>118</xmin>
            <ymin>69</ymin>
            <xmax>473</xmax>
            <ymax>193</ymax>
        </bndbox>
    </object>
</annotation>

I want to change the tags in <bndbox> tag. I want to change values ofxmin,ymin,xmax,ymax. I am able to get the values of these tags but i am unable to set values of these tags.
Question:
How to change content of tags mentioned above?

It might help you thewizz.art/2022/01/06/…

Mokus
– Mokus

2022-01-07 12:12:43 +00:00
Commented Jan 7, 2022 at 12:12 — Mokus
– Mokus, Commented Jan 7, 2022 at 12:12

Marcin · Accepted Answer · 2016-11-01 05:45:48Z

2

Matlab supporst java interface to xml. For example to change xmin in bndbox you could do:

xmlfile = fullfile('/tmp/test.xml');

DOMnode = xmlread(xmlfile);
bndbox_elem = DOMnode.getElementsByTagName('bndbox');
xmin_elem = bndbox_elem.item(0).getElementsByTagName('xmin');
xmin_elem.item(0).setTextContent('3233')

xmlwrite('/tmp/test2.xml',DOMnode);

answered Nov 1, 2016 at 5:45

Marcin

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