How to zoom in the figure/image/montage without the margin surround it?

Question

Sandy Woo 2020-9-16

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https://ww2.mathworks.cn/matlabcentral/answers/594448-how-to-zoom-in-the-figure-image-montage-without-the-margin-surround-it

评论： Sandy Woo 2020-9-25

Hi, when I'm using imshow/montage, I notice that a quite large margin exist around the image when I'm zooming it.

When I zoom in, I thought the image would fill the window like:

But in fact, the image will zoom in and remain its window size like:

This wastes a lot of areas when I'm using a 24 inch monitor, especially when I need to compare several details in montage image. The montage seems very narrow compared with the full screen.

I'm wondering if there are any methods to enlarge the image to fill the window size. Many thanks!

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Answer 1

Ameer Hamza 2020-9-16

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https://ww2.mathworks.cn/matlabcentral/answers/594448-how-to-zoom-in-the-figure-image-montage-without-the-margin-surround-it#answer_495247

编辑：Ameer Hamza 2020-9-16

Try something like this

img1 = imread('pears.png');
imgs = {img1, rgb2gray(img1), imbinarize(img1)};
im = montage(imgs, 'Size', [1 3]);
im.Parent.Position = [0 0 1 1];

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Ameer Hamza 2020-9-16

Yes, once the zoom function does not change the position of the axes itself. Doing so seems to be possible but a bit complicated. You will need to attach a callback function with zoom action: https://www.mathworks.com/help/matlab/ref/zoom.html

Sandy Woo 2020-9-25

Hi Ameer,

Thanks a lot for your help! I'm quite confused about this help page, as I failed to find a function about this...So would you kindly help me to write an example code based on your example above when you have time?

Cheers

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