A simple problem about matrix plz HELP me
1 次查看(过去 30 天)
显示 更早的评论
Hello,
I have this matrix that attached, every row shows SURF features for one image, but these features are so close together, I wanna increase discrimination between every row, and take to a larger scale,
how cani do this?
can you help me plz?
0 个评论
采纳的回答
hosein Javan
2020-8-10
suppose your matrix is called "X". if you want to scale each row by a known factor, write this code:
% define a column vector called S where S(i) is the scaling factor for each row.
[~,c] = size(X)
Xp = repmat(S,[1 c]).*X % the scaled matrix
vector S must have the same number of rows as matrix X. the values in S must be around 1 (eg: 0.92, 1.04,etc) to not change your main matrix entirely but that's on your own.
更多回答(0 个)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Matrices and Arrays 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!