Can't Generate XML file

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Hi Steven,

1. Yes you are right about that. I should've said that the raw pictures' size are different;

2. My current version of OpenCV is 3.0.0; however, last night I stopped the program and re-ran the program started from stage 12, it took 11 hours to finish and now it's in stage 13 now. Isn't it weird?

3. There is a cascade.xml file in the folder. I'm gonna try it and see how it performs.

Thank you so much Steven.

You are welcome, could you accept the answer? As to the time difference, it is non deterministic, it could be possible that stage 13 will now run for a long long time. Like you said, try seeing if the achieved model is already good enough for your application or not.

I tried using the xml file with 0-12 stages, and the performance was pretty bad. I wonder if balloon is a good haar feature object and gonna re-test the performance using the newer xml file. BTW Steven, is it possible to see which haar feature it uses from the xml file?

Let me suggest you to start with LBP features. They are easier and faster to calculate and train. As to the object of a balloon, the downside is that you can only use edge features because texture inside is kind of unexisting... and that shape is quite common in other objects also. As to the used HAAR feature, the newly released book OpenCV 3 Blueprints has a complete explanation of the interface as well as visualisation tools for showing which features are used inside your model, as well as the explanation of how they are inside the xml file. I am planning to release that functionality to OpenCV in the future, but for now it is accompagnied with the book.