10mp DSLR enlargements
Godfrey DiGiorgi
godders at mac.com
Thu Oct 5 03:32:00 EST 2006
Yes, it's just a semantic difference. Resizing is ambiguous as to
whether you're upsampling (interpolating to a larger matrix) or
downsampling (interpolating to a smaller matrix). The direction of
interpolation can change the methodology you use to resize vis-a-vis
the quality of the resultant image.
Godfrey
On Oct 5, 2006, at 1:41 AM, Shel Belinkoff wrote:
> Thanks. I thought it was something more complicated than that.
> I've done
> this a few time - just called it resizing.
>
>> Upsampling == upsizing ... Interpolating an X by Y image raster to a
>> larger X' by Y' image raster.
>>
>> - In Camera Raw, you can upsample or downsample by using the
>> workspace settings menu for Size.
>>
>> - In Photoshop, you upsample by using "Image->Image Size..." and
>> setting the image to any pixel dimensions larger than the native
>> original size with the "Resample Image" box checked.
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