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Thread: How can I change the aspect ratio of an image in ubuntu 18.04?

  1. #1
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    Question How can I change the aspect ratio of an image in ubuntu 18.04?

    How can I change the aspect ratio of an image in ubuntu 18.04?

  2. #2
    Join Date
    Jun 2007
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    Arizona U.S.A.
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    Re: How can I change the aspect ratio of an image in ubuntu 18.04?

    Use Gimp:

    Image > Scale Image

    Unlink the height and width (click icon to right of height and width settings), then you can change height and width independently, altering the aspect ratio.
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    Last edited by Dennis N; 4 Weeks Ago at 07:22 PM.

  3. #3
    Join Date
    Aug 2005
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    Northern Michigan USA
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    Xubuntu 14.04 Trusty Tahr

    Re: How can I change the aspect ratio of an image in ubuntu 18.04?

    I have had great luck with several HP laptops

  4. #4
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    Nov 2008
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    Kubuntu 20.04 Focal Fossa

    Re: How can I change the aspect ratio of an image in ubuntu 18.04?

    If you just change the aspect ratio without any sort of cropping it will not look right. For instance, if you were trying to take a 4:3 image and make it 16:9 it would be horribly stretched. Rather you would need to cut a 16:9 rectangle out of the 4:3 image then rescale the cutout. So you'd be cutting out the area inside the box in this image:



    GIMP has excellent tools for these tasks. You can set the horizontal selection tool to a specific aspect ratio to designate the area to capture. Once selected, Edit > Copy > Edit > Paste As > New Image will give you a new image with the material inside the selection.
    Last edited by SeijiSensei; 4 Weeks Ago at 05:41 PM.
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