I've been searching the Internet for 2 weeks, but I could not find the answer I need.
I'm learning about Local Binary Pattern in Face Detection and I want to build an app to detect face in image without using OpenCV classes, I mean I want to build my own class(es).
I see this xml file "lbpcascade_frontalface.xml" in openCV. I think this file is used to recognize face by Local Binary Pattern algorithm, so I want to use it to recognize face in image, but I don't understand about data nodes.
What do they mean? How to use them? Especially data in leafValues and internalNodes tags
<stages>
<!-- stage 0 -->
<_>
<maxWeakCount>3</maxWeakCount>
<stageThreshold>-0.7520892024040222</stageThreshold>
<weakClassifiers>
<!-- tree 0 -->
<_>
<internalNodes>
0 -1 46 -67130709 -21569 -1426120013 -1275125205 -21585
-16385 587145899 -24005</internalNodes>
<leafValues>
-0.6543210148811340 0.8888888955116272</leafValues></_>
I'm sorry if my English is not good.