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Resizing palette-based images with bilinear interpolation

Posted: Sun Aug 27, 2017 1:45 pm
by XnTriq
Resizing palette-based images with bilinear interpolation produces weird results in XnView v2.40:

Re: Resizing palette-based images with bilinear interpolation

Posted: Mon Aug 28, 2017 10:57 am
by xnview
with previous version too?

Re: Resizing palette-based images with bilinear interpolation

Posted: Mon Aug 28, 2017 4:00 pm
by XnTriq
xnview wrote:with previous version too?
Yes, same issue with v2.39 and v2.37, but not in v1.99.6:
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p144785_1.png (3.7 KiB) Viewed 759 times
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p144785_2.png (39.9 KiB) Viewed 759 times
p144785_3.png
p144785_3.png (68.17 KiB) Viewed 759 times

Re: Resizing palette-based images with bilinear interpolation

Posted: Wed Aug 30, 2017 7:10 pm
by xnview
XnTriq wrote:
xnview wrote:with previous version too?
Yes, same issue with v2.39 and v2.37, but not in v1.99.6:
in 1.99, the nearest neighbour was used for such images, but some users would like to have bilinear

Re: Resizing palette-based images with bilinear interpolation

Posted: Wed Aug 30, 2017 11:15 pm
by XnTriq
xnview wrote:in 1.99, the nearest neighbour was used for such images, but some users would like to have bilinear
The results I get with Bilinear in v1.99.6 and Nearest Neightbour in v2.40 are indeed identical.