I need to draw 3 circles on retinal images for classification.Can we draw circles of required radius using matlab program?.

Question

Manisha 2013-4-24

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73354-i-need-to-draw-3-circles-on-retinal-images-for-classification-can-we-draw-circles-of-required-radius

回答： Image Analyst 2020-6-27

Hi,I am doing project on Diabetic Retinopathy. I need to classify retinal images into mild,moderate and severe conditions.For this classification I have to draw 3 circles-1/3 of optic disc diameter,1 optic disc diameter and 2 OD diameter.Please suggest me the matlab program to draw circles automatically.

2 个评论
显示无隐藏无

arun anoop m 2020-6-27

use boundingbox in matlab to "Rectangle" around the object

Image Analyst 2020-6-27

I think you meant viscircles(), not bounding box.

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Vineet 2013-4-24

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73354-i-need-to-draw-3-circles-on-retinal-images-for-classification-can-we-draw-circles-of-required-radius#answer_83306

Use the following command: pdecirc(xc,yc,radius) specify the center of the circle in xc and yc.

3 个评论
显示 1更早的评论隐藏 1更早的评论

Anoop 2015-2-23

please attach your code as its for Diabetic retinopathy grading using 3 circles.Even I am need of it very badly

Anoop 2015-3-8

i did it using region props and pixel list and used circle.m program to get required output

请先登录，再进行评论。

Answer 2

Anoop 2015-2-23

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73354-i-need-to-draw-3-circles-on-retinal-images-for-classification-can-we-draw-circles-of-required-radius#answer_169017

please attach your code as its for Diabetic retinopathy grading using 3 circles.Even I am need of it very badly

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 3

Anoop 2015-3-8

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73354-i-need-to-draw-3-circles-on-retinal-images-for-classification-can-we-draw-circles-of-required-radius#answer_170493

i did it using region props and pixel list and used circle.m program to get required output

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

Answer 4

Image Analyst 2020-6-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/73354-i-need-to-draw-3-circles-on-retinal-images-for-classification-can-we-draw-circles-of-required-radius#answer_457903

在 MATLAB Online 中打开

Assuming you have the centroid (x,y) and diameter of the optic disk, you can use viscircles():

% Get 3 centers.
centers = repmat([x, y], 3, 1]);
% Make diameters of 1/3, 1, and 2 times the optic disk diameter.
diameters = [opticDiskDiameter / 3, opticDiskDiameter, 2 * opticDiskDiameter];
% Draw the circles over the image.
viscircles(centers, diameters);