Help To Crop Dilated Images

1 次查看（过去 30 天）
Tip Riel
Tip Riel 2016-2-5
评论： Tip Riel 2016-2-6
hi, how can I crop or get the ROI of the white area (the rectangle) of the image? I used imdilate then imfill.
here's the code:
%Dilation
Id = imdilate(gg1, strel('diamond', 1));
figure, imshow(Id); title('Dilation');
%Fill
If = imfill(Id, 'holes');
figure, imshow(If); title('Fill');

请先登录，再回答此问题。

回答（3 个）

Walter Roberson
Walter Roberson 2016-2-5
bwareafilt() and then look for the blob that best matches the right aspect ratio (in the bounding box) out of what is left ?
Image Analyst
Image Analyst 2016-2-5
If you know it's the blob closest to the center, you can compute the distance from the centroid to the center of the image and take the one that is closest. Or adapt my attached demo to find rectangles.
Dima Lisin
Dima Lisin 2016-2-5
I would use regionprops. It can compute many shape parameters, such as area, perimeter, eccentricity, etc. You can probably come up with a some combination of those parameters, that will let you tell the license plane from the other shapes.

类别

在 Help Center 和 File Exchange 中查找有关 Computer Vision with Simulink 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