how to find threshold
6 ビュー (過去 30 日間)
古いコメントを表示
I have calculated the variance of an image.now i need to classify the pixels as foreground when the variance is more than a threshold ,otherwise it is classified as background pixel.how to select this threshold
0 件のコメント
採用された回答
Image Analyst
2013 年 11 月 10 日
編集済み: Image Analyst
2013 年 11 月 10 日
It doesn't make sense to do what you said globally - just think about it.
There are several ways to do it locally adaptive: blockproc(), stdfilt(), nlfilter(), nested for loops, etc.
I show two of these in the demo attached below.
その他の回答 (0 件)
参考
カテゴリ
Help Center および File Exchange で Image Processing Toolbox 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!