清空筛选条件
清空筛选条件

How to replace a value in a matrix of pixels using matlab ?

1 次查看（过去 30 天）
dhaarani chandrasekaran
评论： dhaarani chandrasekaran 2017-2-14
I have a 225*225 image.I don't know how to replace a pixel value using indices value.please reply as soon as possible.
Thanks in advance.
  1 个评论
dhaarani chandrasekaran
dhaarani chandrasekaran 2017-2-14
I have tried this code.But I am trying to replace values in a matrix based on some conditions without loop. please reply as soon as possible.

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

mizuki
mizuki 2017-2-14
If you want to replace the pixel (i,j)=(100,125) of the variable img with 0.2, use the following code:
i = 100;
j = 125;
img(i,j) = 0.2;

类别

在 Help Center 和 File Exchange 中查找有关 Matrix Indexing 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by