opening by reconstruction results

Question

Sukuchha 2013-11-4

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/104826-opening-by-reconstruction-results

评论： Satadru Mukherjee 2020-7-14

I know the algorithm how it works. For illustration process i want to visualise output of opening by reconstruction in each iteration. in matlab the function just gives the final result obtained after stability is reached.

looking at the fucntion itself with edit imreconstruct, it calls a mex function for processing and there is no way to get individual output from imreconstruct.

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Answer 1

Image Analyst 2013-11-4

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链接

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https://ww2.mathworks.cn/matlabcentral/answers/104826-opening-by-reconstruction-results#answer_114087

No. You'd have to write that code yourself.

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Image Analyst 2013-11-4

I'd start by searching the internet for a full description or pseudocode for doing morphological reconstruction.

Satadru Mukherjee 2020-7-14

在 MATLAB Online 中打开

Check this , hope you will enjoy it , Happy Coding :-)

clc
clear all
close all
warning off
x=double(~imbinarize(rgb2gray(imread('GG.JPG'))));
x=imfill(x,'holes');
k=input('How many points you want to enter?');
imshow(x);
[a b]=size(x);
h_k=zeros(a,b);
temp=0;
while temp<k
    gk=zeros(a,b);
    [m n]=ginput(1);
    m=round(m);
    n=round(n);
    gk(n,m)=1;
    h_k=h_k+gk;
    temp=temp+1;
end
imshow(h_k);
se=ones(3);
previous=h_k;
current=(imdilate(previous,se) & x);
output=zeros(a,b,3);
figure;
pause(3);
while ~isequal(previous,current)
    previous=current;
    current=(imdilate(previous,se) & x);
    output(:,:,2)=current;
    subplot(1,2,1);
    imshow(x);
    subplot(1,2,2);
    imshow(output);
    pause(0.2);
end
close all
imshow(current);