Implementing equation doe 3x3 matrix

1 次查看（过去 30 天）
FIR
FIR 2012-12-19
I have a image below ,please tell how to implement the equation for a 3x3 matrix
http://imgur.com/6NO9M
please assist

请先登录，再回答此问题。

采纳的回答

Matt J
Matt J 2012-12-19
编辑：Matt J 2012-12-19
qVMF=median(q(:));
  2 个评论
Walter Roberson
Walter Roberson 2012-12-19
编辑：Walter Roberson 2012-12-19
Will the median necessarily be the one that minimizes the sums ? Wouldn't the pixel that is closest to the mean be the one that minimizes the sums ?
Matt J
Matt J 2012-12-19
编辑：Matt J 2012-12-19
Yes, the median is the known solution to this problem, which you can also verify by comparing it with the output of the code in your Answer.
The mean minimizes the sum of squared differences.
It would get slightly complicated if there were an even number of pixels, because then the median wouldn't be attained at any of the q(i). Here, however, there are an odd number of pixels.

请先登录，再进行评论。

更多回答（1 个）

Walter Roberson
Walter Roberson 2012-12-19
[minsum, minidx] = min( sum(abs(bsxfun(@minus, q(:), q(:).'))) );
qVFM = q(minidx);

类别

在 Help Center 和 File Exchange 中查找有关 Particle & Nuclear Physics 的更多信息

标签

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by