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Resizing circle: strange results

Jul 31, 2012 2:50 PM



I'm getting weird results after resizing a simple circular icon in Photoshop CS6 on Mac OS X 10.8.


I'm resizing from 128 px to 60 px.


The final icon is not totally circular: it has some excrescences on four sides.


Tried every possible resampling modes.


Resizing the sime icon in Preview gives perfect results.


Here's the examples:


Original icon:


Resized in Photoshop:


Resized in Preview:



Any ideas why it happens?


Thanks for any help,


  • Noel Carboni
    23,488 posts
    Dec 23, 2006
    Currently Being Moderated
    Jul 31, 2012 3:03 PM   in reply to leo.r

    "Excrescences", eh?  I had to look that one up.  Thanks for teaching me a new word.


    Interesting.  I just opened your file, did Image - Image Size, 60px, and came up with this:




    Do you have Photoshop set to the default resampling scheme?  I don't find that beneficial at all.


    Try changing Photoshop - Preferences - General, Image Interpolation to just plain Bicubic.





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  • Currently Being Moderated
    Jul 31, 2012 6:52 PM   in reply to leo.r

    How are you resizing the icon?

    Using Image>resize , transform or.......?


    Do you have any layer styles on the layer?

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  • Currently Being Moderated
    Jul 31, 2012 7:28 PM   in reply to leo.r

    If you use the Image>Image Resize dialog you can check the Scale Styles button.

    If you don't won't to flatten the effects and use transform, you can scale the styles manually after resize.

    Layer>Layer Style>Scale Effects.

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    Aug 1, 2012 9:19 AM   in reply to leo.r

    Leo, many layer style effects parameters accept integer values only, so downscaling can ruin or eliminate the effect unless it is first rasterised.

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