Re: bug #464466: lanczos "corner" artifacts

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Hi,

On Fri, Aug 8, 2008 at 7:30 AM,  <gg@xxxxxxxxxxx> wrote:
> On Thu, 07 Aug 2008 22:20:00 +0200, Nicolas Robidoux
> <nrobidoux@xxxxxxxxxxxxxxxx> wrote:
>
>> A student of mine and I have put together a gimp plug-in which ENLARGES
>> images using a method which is analogous to global cubic splines, that
>> is, which gives results analogous to lanczos.
>
>
> Hi,
>
> in what way do you mean the results are analogous to lancsoz?
>
> Could you perhaps compare results of your plugin with the comparitive
> results on the kingfisher head shot?
>
> http://svenfoo.org/scaletest/133-9.html
> http://svenfoo.org/scaletest/133Z8g.png
> http://svenfoo.org/scaletest/133C8g.png
> and/or the pixel graphic:
>
> http://svenfoo.org/scaletest/133-8.html
> http://svenfoo.org/scaletest/133Z8g.png
> http://svenfoo.org/scaletest/133C8g.png
>
> these two images scaled to 133% seemed to be the best cases in that test
133.33% please. If you use just 133.00%, the result will be the wrong
dimensions and so, uncomparable.
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