measure the maximum distance in millimeters(mm)

1 次查看（过去 30 天）
Dina Abd El-twab
Dina Abd El-twab 2020-4-11
评论： Dina Abd El-twab 2020-4-12
How can I measure the maximum width of the white shape in millimeters(mm) not in pixels ?
Image Analyst

请先登录，再回答此问题。

回答（1 个）

Image Analyst
Image Analyst 2020-4-11
Then you need to multiply by the number of millimeters per pixel:
props = regionprops(binaryImage, 'BoundingBox')
width = props.BoundingBox(3) * mmPerPixel;
See attached demo.
  4 个评论
显示 2更早的评论
Dina Abd El-twab
Dina Abd El-twab 2020-4-12
编辑：Dina Abd El-twab 2020-4-12
I need it to extract features .
Image Analyst
Dina Abd El-twab
Dina Abd El-twab 2020-4-12
I applied your (regionprops code), but the value that is obtained is not the right value , I applied (imtool) and I found that the maximum width is 60.07 .
But your code gave me the width is 445.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Region and Image Properties 的更多信息

标签

产品

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by