How does the imreisze function works?

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John Doe
John Doe 2020-5-18
评论： John Doe 2020-5-18
Hello everyone. I was trying out the built-in hallway photo in MATLAB. I resized it by 1.5 times and 2 times than the original image. But somehow the 1.5 times version looks bigger to the naked eye? For low-res images, 1.5 times and 2 times resized images look their size though.
I was wondering if one could explain how the resize function is working here. Thanks!

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Image Analyst
Image Analyst 2020-5-18
If the image cannot fit fully on the screen, it will reduce the axes control until it will fit comfortably. Maybe the 1.5 just barely fit but the 2 would not and it resized the 2 to be smaller than the 1.5. You can always turn on the tick marks to see the actual pixel count:
axis('on', 'image');
Also, see attached zooming example.
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John Doe
John Doe 2020-5-18
Thanks for the neat explanation.
If MATLAB resized the 2 to fit the window, then will it still be the double in size and greater than 1.5 if I save it?

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