code for performing erosion and dilation without using builtin functions like imdilate or imerode??
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code for dilation and erosion without using builtin functions?
3 个评论
John D'Errico
2016-3-5
编辑：John D'Errico
2016-3-5
So write one. It is your homework after all. Why not make an effort. If and when you have a real question, then ask it.
Walter Roberson
2016-3-8
"aaa aaa" commented
then why u r having tis page ..better close it
Walter Roberson
2016-3-8
"aaa aaa": this facility exists to educate, not to do people's work for them.
When someone has a homework question, then at the very least we expect them to explain what it is they do not understand, at which point we will explain, or we will point them to appropriate documentation.
回答（3 个）
aslan memo
2019-11-7
1 个投票
if use this Structuring =[0 1 0;1 1 1;0 1 0]; how to write code ??
1 个评论
Walter Roberson
2019-11-10
How to write the code to accomplish what purpose?
SIMI M S
2016-9-23
编辑：Walter Roberson
2016-9-23
Dilation code
A=imread( 'text.png' );
A=im2bw(A);
%Structuring element
B=[1 1 1 1 1 1 1;];
C=padarray(A,[0 3]);
D=false(size(A));
for i=1:size(C,1)
for j=1:size(C,2)-6
D(i,j)=sum(B&C(i,j:j+6));
end
end
figure,imshow(D);
3 个评论
Faiza Bukenya
2018-1-24
编辑：Walter Roberson
2019-11-10
Erosion code
A=imread('faiza.png')
A=im2bw(A);
%Structuring element
B=[1 1 0];
%Pad array with ones on both sides
C=padarray(A,[0 1],1);
%Intialize the matrix D of size A with zeros
D=false(size(A));
for i=1:size(C,1)
for j=1:size(C,2)-2
L=C(i,j:j+2);
%Find the position of ones in the structuring element
K=find(B==1);
if(L(K)==1)
D(i,j)=1;
end
end
end
figure,imshow(D);
Borhan Raad
2020-8-9
编辑：Walter Roberson
2020-8-9
does it work with 3x3 Structuring element? if not, what adjustment do we need to make?
Walter Roberson
2020-8-9
That code is only designed for linear structuring elements. The adjustment to it for a different width of linear structuring element would be
for j=1:size(C,2)-size(B,2)+1
L=C(i,j:j+size(B,2)-1);
Mohammed Hassan
2022-2-21
0 个投票
code for dilation and erosion without using builtin functions ?
1 个评论
Image Analyst
2022-2-21
movmax() is dilation. movmin() is erosion.
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