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what is the best filter to resize an image
Posted: Wed Oct 05, 2005 3:49 pm
by klumy
what is the best filter to resize an image
Re: what is the best filter to resize an image
Posted: Wed Oct 05, 2005 5:50 pm
by helmut
klumy wrote:what is the best filter to resize an image
The choice of the filter depends on what you want to achieve. Personally I use Lanczos, only.
In the FAQs
"How to prepare an image for the internet" and
"How to resize images with text (screenshots)" you will find interesting infos regarding resizing.
Forum member "Lasse" has made tests which show the results of the various algorithms when
Resizing a normal image and when
Resizing an image with text.
Posted: Wed Oct 05, 2005 5:59 pm
by Drahken
See this thread:
http://newsgroup.xnview.com/viewtopic.php?t=3496 from someone who asked almost the exact same question.
To summarize: There isn't a great deal of difference between most of the filters, not unless you're increasing the size by 500% or something. Lanzcos is usually the highest quality, but it creates a great deal of blur and has to be sharpened considerably before it looks good. My favorite is mitchell. It's nearly as high quality as lanzcos, but doesn't require as much sharpening. (You can often get away without sharpening it at all.)