清空筛选条件
清空筛选条件

What units is the number in strel('disk', 22)?

6 次查看（过去 30 天）
Simran Parkhe
Simran Parkhe 2019-9-16
编辑： Guillaume 2019-9-16
dilated = imdilate(ImagetoDilate,strel('disk', 22));
I have this line in my code to dilate the image, but I was wondering what units the 22 is? It says it is the radius but is it measured in centimeters, percentage, pixels or something else?

请先登录，再回答此问题。

采纳的回答

Walter Roberson
Walter Roberson 2019-9-16
编辑：Walter Roberson 2019-9-16
Pixels.
Or more correctly, memory locations, as the result is used in multiple contexts and makes no attempt to handle multiple color planes.
  1 个评论
Guillaume
Guillaume 2019-9-16
编辑：Guillaume 2019-9-16
You can easily look at the structuring element
>> s = strel('disk', 22)
s =
strel is a disk shaped structuring element with properties:
Neighborhood: [43×43 logical]
Dimensionality: 2
and you can see that the disk overlaps 43x43 pixels.
As for it being a disk:
>> imagesc(s.Neighborhood); colormap([0 0 0; 0.8 0.8 0.8]); axis('off')

请先登录，再进行评论。

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Image Processing Toolbox 的更多信息

标签

产品


版本

R2007b

Community Treasure Hunt

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

Start Hunting!

Translated by