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Author PS' internal interpolation algorithms
ronviers@gmail.com

2007-03-05, 6:14 pm

Hi,
Do we as users have any control of which interpolation algorithms PS
uses internally to resize objects and pixels for display and
rasterization?

Thanks,
Ron

tacit

2007-03-05, 6:14 pm

In article <1173067725.193792.162170@n33g2000cwc.googlegroups.com>,
"ronviers@XXXXXXXXXX" <ronviers@XXXXXXXXXX> wrote:

> Do we as users have any control of which interpolation algorithms PS
> uses internally to resize objects and pixels for display and
> rasterization?


Yes. It will use whatever you set in the Preferences for interpolation
during rotation, skewing, free transform, and so forth.

It always uses a crude interpolation for on-screen viewing.

No interpolation is used for rasterizing a vector object.

--
Photography, kink, polyamory, shareware, and more: all at
http://www.xeromag.com/franklin.html
ronviers@gmail.com

2007-03-05, 6:14 pm

On Mar 5, 2:49 pm, tacit <tac...@aol.com> wrote:

> Yes. It will use whatever you set in the Preferences for interpolation
> during rotation, skewing, free transform, and so forth.


> Photography, kink, polyamory, shareware, and more: all athttp://www.xeromag.com/franklin.html


So this goes for rasterizing resized smart objects?

Thanks

tacit

2007-03-05, 10:14 pm

In article <1173129665.636261.188310@t69g2000cwt.googlegroups.com>,
"ronviers@XXXXXXXXXX" <ronviers@XXXXXXXXXX> wrote:

>
> So this goes for rasterizing resized smart objects?


If you resize a vector smart object, it is still vector. No
interpolation is done. When you rasterize it, it is rasterized at that
size, which does not involve interpolation.

--
Photography, kink, polyamory, shareware, and more: all at
http://www.xeromag.com/franklin.html
ronviers@gmail.com

2007-03-05, 10:14 pm

On Mar 5, 6:43 pm, tacit <tac...@aol.com> wrote:
> In article <1173129665.636261.188...@t69g2000cwt.googlegroups.com>,
>
> "ronvi...@XXXXXXXXXX" <ronvi...@XXXXXXXXXX> wrote:
>
>
> If you resize a vector smart object, it is still vector. No
> interpolation is done. When you rasterize it, it is rasterized at that
> size, which does not involve interpolation.
>
> --
> Photography, kink, polyamory, shareware, and more: all athttp://www.xeromag.com/franklin.html


Wouldn't a rasterized smart object be a special case vector in the
sense that it is derived directly from pixels not mathematically and
therefore interpolation must occur because the resulting image is not
the same size as the original?

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