how to plot roc?
6 ビュー (過去 30 日間)
古いコメントを表示
Helo everyone...Iam working on a dataset of 200 images consisting of both pothole and non-pothole images for the pothole detection.Finally my output is a binary segmented image. I have calculated TP,TN.FP,FN at three thresholds respectively.
For example, if the pothole area is covering atleast 40% of black pixels it is a pothole else it is not a pothole. Similarly, the other two thresholds are of 50% and 60%. For this scenario, can any one help to plot roc curve.
0 件のコメント
採用された回答
Star Strider
2020 年 1 月 29 日
2 件のコメント
Star Strider
2020 年 1 月 31 日
According to the Wikipedia article on the Receiver operating characteristic (and specifically this plot figure, since it is easier to see) the plot arguments are reversed.
Try this:
TPR = [0.71333333333 0.79333333333 0.86666666667];
FPR = [0.00000000000 0.00000000000 0.08860759494];
figure
plot(FPR, TPR)
grid
axis([0 1 0 1]) % Optional (Displays Entire Axis Limits)
It would help to have more data to better define the curve.
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Detection についてさらに検索
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!