Reshape and merge an array of images

General Usage
1

Hi, I have an array of images and I simply want to merge them into one, efficiently.
Say that my array has 6 images, I would want to form something like;

1 2  or  1 2 3
3 4      4 5 6
5 6

At the time I’m doing this with nested loops and it seems unnecessary, there should be an easier way, like reshape(arr, (2, 3)) and merge them together at the same time.

2

It looks like hvcat can be used here: Concatenating in comprehension - #8 by Skoffer

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3

Yes!! That was it.

using TestImages
ARR = [testimage(“cameraman”) for i in 1:6];
hvcat(3, ARR…)
hvcat(2, ARR…)

does the trick.

Thank you so much for your answer.

1 Like
4

If your images are of different sizes, there’s also the MosaicViews package.

3 Likes