How can I substitute values in a matrix if they equal a certain value?

3 次查看（过去 30 天）
Claire
Claire 2014-4-16
评论： Claire 2014-4-16
I have two matrices X1 and X2 (both have dimensions 512x512) I would like to write code to create a new matrix that has the element values from X1 in, unless the element equals 255- in which case I would like to use the element from the same coordinate from X2 instead.
I hope this makes sense! Thanks for your help :)

请先登录，再回答此问题。

采纳的回答

Mischa Kim
Mischa Kim 2014-4-16
编辑：Mischa Kim 2014-4-16
Claire, you could use something like
X3 = X1;
X3(X1==255) = X2(X1==255);

更多回答（1 个）

lvn
lvn 2014-4-16
I hope this is what you mean:
newmatrix=X1;
newmatrix(X1==255)=X2(X1==255);

类别

在 Help Center 和 File Exchange 中查找有关 Resizing and Reshaping Matrices 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