Let’s say that you have a set of images that you want to tile using `imshow()`

and `subplot()`

in a MATLAB figure. By default, both functions add a padded space around the images to separate them, as this example shows:

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I1 = zeros(500,'uint8'); I2 = zeros(500,'uint8')+127; I3 = zeros(500,'uint8')+255; figure subplot(1,3,1), imshow(I1); subplot(1,3,2), imshow(I2); subplot(1,3,3), imshow(I3); |

Result:

However, what if you want to tile the images *without* any space between them? The `imshow()`

function does have a property to remove the border around a displayed image, by using `imshow(I, 'border', 'tight')`

. This is fine when only one image is being displayed, but `subplot()`

itself adds additional spacing between images. Removing this space is not straightforward, but a gap-less subplot grid can be constructed by using the following function in place of `subplot()`

:

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function h = subplottight(n,m,i) [c,r] = ind2sub([m n], i); ax = subplot('Position', [(c-1)/m, 1-(r)/n, 1/m, 1/n]) if(nargout > 0) h = ax; end |

By using this function, a completely borderless subplot of images can be constructed as follows:

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I1 = zeros(500,'uint8'); I2 = zeros(500,'uint8')+127; I3 = zeros(500,'uint8')+255; figure subplottight(1,3,1), imshow(I1, 'border', 'tight'); subplottight(1,3,2), imshow(I2, 'border', 'tight'); subplottight(1,3,3), imshow(I3, 'border', 'tight'); |

Result:

## 6 comments on “How to Make a Borderless Subplot of Images in MATLAB”

Thanks Brian saved me a bunch of fiddling.

Thanks a lot.very useful!

Thank you so much,

Simple and useful!

Thank You so much :) :D

Thanks!!! It is very useful.

King!!!