trouble with the scale bug

[Matthew Woehlke]

Casper Boemann wrote:
> On Friday 25 May 2007 16:54, Matthew Woehlke wrote:
>> Casper Boemann wrote:
>>> And as these transparent borders are mathmatically correct (eventhough
>>> for a plain rect picture not attractive) I feel that we should come up
>>> with something similar to what photosop does.
>> To ask a "dumb" question, /why/ are they "mathematically correct"? It
>> seems it should be possible to define the resize algorithm in a way that
>> avoids this problem...
> 
> Well because the "new pixel" is sampled from the pixels it cover in the old 
> image.

I am probably missing something because I'm not familiar with Krita's 
resize algorithm, but I was thinking this should be 'fixable' by simply 
defining the coordinate mapping in such a way that the edge 'new pixels' 
never overlap past the outside of the edge 'old pixels'. So an edge 
pixel does not "overlap" pixels that "didn't exist"...

-- 
Matthew
"Still the prettiest." -- Legolas
(as quoted in The Very Secret Diaries by Cassandra Claire)
http://www.ealasaid.com/misc/vsd/