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is it possible to plot ROC curve for train cascade object detector result?
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hello, i trained a classifier using traincascadeobjectdetector function, how to evaluate it and plot a ROC curve ?
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Image Analyst
am 8 Mai 2016
To plot ROC curves just keep track of false positives, false negatives, true positive, and true negatives, and then plot the True positive rate vs. False positive rate. You will need to tweak some parameters in your detection algorithm to vary the rates, otherwise you'll just have a single point, not a whole curve.
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/174264/image.png)
3 Kommentare
Image Analyst
am 9 Mai 2016
I can't tell you how to determine if your algorithm predicts correctly or not. It's you who must know that, or figure it out. It depends on what your algorithm does and what you know about the ground truth.
matlab22
am 24 Mai 2016
1 Kommentar
sunaina bhateja
am 22 Jan. 2018
Am also plot ROC curve for train cascade object detector result. So can you please help to predict ROC curve. Please help me to generate ROC curve.
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