In subplot, how do I plot all images in same size?

Question

Queila Martins 2017-5-9

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评论： Queila Martins 2017-5-10

Hi,

I'm trying to use subplot to show a ranking of images. I've been trying to understand how to change the code to get all images in the same size when I show then in a figure, but with no success until now.

I've attached my image rankings so you can have an idea. To print that, I read a list of images from a .txt file and then I use a for loop to print each of those.

I would like them to have the same height and width, even if they have different size. Can anybody give me a hint? I've tried a lot of similar examples, but I still didn't understand how to do it. They could be the same size of first image that appears in the ranking.

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Answer 1

Walter Roberson 2017-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/339544-in-subplot-how-do-i-plot-all-images-in-same-size#answer_266361

在 MATLAB Online 中打开

Use image() to draw the images instead of imshow().

And do not use the

axis image

or

axis equal

commands.

For example,

foo1 = randi(255,20,30,'uint8');
foo2 = randi(255,25,30,'uint8');
subplot(1,2,1); image(foo1)
subplot(1,2,2); image(foo2)

The images will be drawn the same size.

This will typically result in most of the images looking distorted.

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Queila Martins 2017-5-10

Thank you SO much, Walter! I was really doing wrong things (using axis equal, imshow, etc). I merged your suggested code with set(gca...) and I got exactly what I needed.

Thank you so much again! very helpful!

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