Using Watershed to seperate Ellipsis

Question

Karsten Gros 2018-11-20

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/430909-using-watershed-to-seperate-ellipsis

评论： Karsten Gros 2018-11-21

采纳的回答： Image Analyst

111.jpg

在 MATLAB Online 中打开

Hi, I habe a problem regarding the watershed-function...

I tried it with circles, which worked basically as I intended.

Now I want to seperate ellipsis, but it doesn't work...

Here's the code I used:

bw = imread('111.jpg'); % read Image
bw=im2bw(bw); % Binarize
bw=~bw; % invert
%% Smooth edges
windowSize = 51;
kernel = ones(windowSize) / windowSize ^ 2;
blurryImage = conv2(single(bw), kernel, 'same');
binaryImage = blurryImage > 0.8; % Rethreshold
%% Using the Watershed function as the Matlab-help suggests
bw = binaryImage;
D = bwdist(~bw);
D = -D;
D(~bw) = Inf;
L = watershed(D);
L(~bw) = 0;
rgb = label2rgb(L,'jet',[.5 .5 .5]);