Bounding box around image

Question

Owen Gebler 2018-10-18

1
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/424812-bounding-box-around-image

评论： Owen Gebler 2018-10-18

I'm attempting to show an image within a plot, with a bounding box around the image. However, the following results in an image without a bounding box, despite the box being explicitly asked for:

 clear
 close all
 % Create figure
 fig1 = figure;
 % Random plot
 plot( (1:10), randi(10,1,10) )
 % Create new axes within existing
 axes('pos',[.1 .6 .5 .3])
 % Load and show image
 imshow('coins.png')
 a1 = gca;
 % Try turning box on and redrawing
 a1.Box = 'on';
 drawnow;

Any suggestions as to how this might be resolved? I'm hoping there's a simpler way than having to manually draw a box over the top...

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Answer 1

Image Analyst 2018-10-18

0
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/424812-bounding-box-around-image#answer_342159

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Try this:

% Random plot
plot( (1:10), randi(10,1,10), 'LineWidth', 2)
grid on; % Optional
% Create new axes on top of the existing plot.
axes('Position',[.1 .6 .5 .3])
% Load and show image
imshow('coins.png')
axis('on', 'image');  % This is the KEY LINE OF CODE!