How to display rgb image from a matrix as well as insert rectangular shape in the same image.

Question

RPG 2015-12-30

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/262214-how-to-display-rgb-image-from-a-matrix-as-well-as-insert-rectangular-shape-in-the-same-image

评论： RPG 2015-12-30

I have a M x N matrix array which I have to display in rgb image. At the same time I want to insert a rectangular shape in the same image so that final image looks like a small portion is highlighted. Can somebody please tell me the appropriate code for it. In my case M=1065 N=1030 I want a rectangle of dimension 20 x 10 around [835,504]. Please help me out.

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

harjeet singh 2015-12-30

2
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/262214-how-to-display-rgb-image-from-a-matrix-as-well-as-insert-rectangular-shape-in-the-same-image#answer_204671

在 MATLAB Online 中打开

try this

a(1:1065,1:1030,1:3)=255;
a=uint8(a);
roi=[835 504];
box=[20 10];
figure
imshow(a)
hold on
rectangle('position',[roi(1)-box(1)/2 roi(2)-box(2)/2 box(1),box(2)]);
hold off
drawnow

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

RPG 2015-12-30

Thanks a lot Harjeet. Its working.

请先登录，再进行评论。

Answer 2

Walter Roberson 2015-12-30

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/262214-how-to-display-rgb-image-from-a-matrix-as-well-as-insert-rectangular-shape-in-the-same-image#answer_204668

image() or imshow() the matrix. rectangle() the highlight.

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

RPG 2015-12-30

only 'image()' is working fine. Can you please elaborately write the command for 'rectangle()' for the above mentioned specifications. That will help me a lot.

请先登录，再进行评论。