From XY array data in pixels to BW image

4 次查看（过去 30 天）
Alejandro Fernández
评论： Alejandro Fernández 2020-11-18
Hi, I have a XY array matrix called A , the first column are the X values (column of the image) and the second Y values (rows of the image) and I need to create a BW image in which the points of the A matrix get color white in the image.
As an example, the A data could be:
A = randi(20,[10 2])
And the image size should be , is that correct?
A = randi(20,[10 2]);
idx = sub2ind([20 20],A(:,2),A(:,1));
BW = false(20,20);
BW(idx) = true;

请先登录，再回答此问题。

采纳的回答

Ameer Hamza
Ameer Hamza 2020-11-18
编辑：Ameer Hamza 2020-11-18
A little mistake in the calculation of idx
idx = sub2ind([20 20],A(:,2),A(:,1)); % Last input shoule be A(:,1)
Rest is correct.

更多回答（0 个）

类别

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

标签

产品


版本

R2020b

Community Treasure Hunt

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

Start Hunting!

Translated by