Where does matrix B fits best in Matrix A
조회 수: 1 (최근 30일)
이전 댓글 표시
I have a matrix A (200x200) and a matrix B (200x50).
I want to know now where B fits best in A. Maybe the nearest neighbour method can help?
Here an example what I mean:
댓글 수: 4
Stephen23
2022년 1월 19일
편집: Stephen23
2022년 1월 19일
@Lucas Kellermann: does the "best fit" require 100% overlap, or can the "best fit" occur over the matrix edges?
For example, where is the "best fit" for these matrices?:
A = [999,999,999,999;999,999,999,999;999,999,1,1;999,999,1,1]
B = [1,1,1;1,1,1;1,1,1]
답변 (1개)
KSSV
2022년 1월 19일
A = 5*ones(8) ;
A(4:6,4:6) = [3 4 2; 1 1 1; 2 3 3] ;
B = ones(3) ;
[m,n] = size(A) ;
count = 0 ;
v = zeros(3,3,[]) ;
R = zeros([],1) ;
for i = 1:3:(m-3)
for j = 1:3:(n-4)
count = count+1 ;
M = A(i:(i+3-1),j:(j+3-1)) ;
v(:,:,count) = M ;
R(count) = sqrt(mean((M(:) - B(:)).^2)) ;
end
end
[val,idx] = min(R) ;
iwant = v(:,:,idx)
댓글 수: 0
참고 항목
카테고리
Help Center 및 File Exchange에서 Statistics and Machine Learning Toolbox에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!