How to choose the boundaries of the gray zone in the image?
4 次查看(过去 30 天)
显示 更早的评论
I have an image and I would like to write a program in order to separate the gray part of the image which is a footprint of a tire. I think the algorithm should be similar to fingerprint detection, however, I don't have sufficient knowledge to do so. Can anyone suggest me a solution?
4 个评论
采纳的回答
Akira Agata
2017-10-11
By combining imclose, imopen, and bwconvhull functions, you can determine the target area. Here is an example.
% Read the image and binarize
I = imread('Footprint.jpg');
I = rgb2gray(I);
BW = imbinarize(I);
% Remove noise
se = strel('disk',5);
BW = imclose(BW, se);
BW = imopen(BW, se);
% Remove areas connected to image border
BW = imclearborder(BW,4);
% Generate convex hull image
ROI = bwconvhull(BW);
% Show the result
imshowpair(I,ROI)
![](https://www.mathworks.com/matlabcentral/answers/uploaded_files/178602/image.png)
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Convert Image Type 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!