Bounding Box largest rectangle?

6 次查看（过去 30 天）
Ivan Q
Ivan Q 2015-8-16
评论： Walter Roberson 2017-9-21
When I use regionprops BoundingBox, it seems to always capture smaller blobs on the left most side of my image and not my largest blob. How do I bound the box around the largest blob?
  4 个评论
显示 2更早的评论
Walter Roberson
Walter Roberson 2015-8-16
box=stats(index).BoundingBox;

请先登录，再进行评论。

请先登录，再回答此问题。

采纳的回答

Image Analyst
Image Analyst 2015-8-16
stats is a structure array. Each element is a structure and has it's own bounding box. So stats(1).BoundingBox is the bounding box (x,y,width,height) of the first blob. And stats(2).BoundingBox is the bounding box (x,y,width,height) of the second blob, and so on. To display them all:
hold on;
for k = 1 : length(stats) % Loop through all blobs.
% Find the bounding box of each blob.
thisBlobsBoundingBox = stats(k).BoundingBox;
rectangle('Position', thisBlobsBoundingBox);
end

更多回答（1 个）

nilton brites
nilton brites 2017-9-21
explain what is definition of bounding box on image?
  2 个评论
Image Analyst
Image Analyst 2017-9-21
It's the box, with edges parallel to the edges of the image, that contains object(s) of interest, such as blobs you got by thresholding. You can have a box around each blob, or around the whole group of them.
Walter Roberson
Walter Roberson 2017-9-21
In particular a bounding box is most often computed as the smallest box with horizontal and vertical sides that encloses the object(s), but bounding boxes can, in general, be larger than that: they are basically a box large enough to be sure you are enclosing the portion of interest.

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Object Analysis 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