Number of dark stripe in a image

1 回表示 (過去 30 日間)
Amrit Kumar Mondal
Amrit Kumar Mondal 2023 年 5 月 23 日
コメント済み: Amrit Kumar Mondal 2023 年 5 月 25 日
How can I calculate number of black or gray stripe in the above region using Matlab (not by counting then manually)?

回答 (1 件)

Nathan Hardenberg
Nathan Hardenberg 2023 年 5 月 23 日
I would extract one line of pixels in the image and then use the islocalmin() or islocalmax()-function. This searches for local minima/maxima. Depending on counting black or white stripes (to count black you need islocalmin()).
Then you just need to check the length of the vector.
If you have Problems (e.g. finding multiple maxima/minima in one stripe) check the documentation for possible arguments which could resolve possible issures.
Note that this only works if your stripes are always "clean". If not possible filtering beforehand might be nessescary.
  5 件のコメント
Amrit Kumar Mondal
Amrit Kumar Mondal 2023 年 5 月 25 日
Thank you Hardenberg.

サインインしてコメントする。

カテゴリ

Help Center および File ExchangeFunction Creation 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!

Translated by