Resizing palette-based images with bilinear interpolation

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XnTriq
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Resizing palette-based images with bilinear interpolation

Postby XnTriq » Sun Aug 27, 2017 1:45 pm

Resizing palette-based images with bilinear interpolation produces weird results in XnView v2.40:


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Re: Resizing palette-based images with bilinear interpolation

Postby xnview » Mon Aug 28, 2017 10:57 am

with previous version too?
Pierre.

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Re: Resizing palette-based images with bilinear interpolation

Postby XnTriq » Mon Aug 28, 2017 4:00 pm

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 66 times

p144785_2.png
p144785_2.png (39.9 KiB) Viewed 66 times

p144785_3.png
p144785_3.png (68.17 KiB) Viewed 66 times

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Re: Resizing palette-based images with bilinear interpolation

Postby xnview » Wed Aug 30, 2017 7:10 pm

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
Pierre.

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Re: Resizing palette-based images with bilinear interpolation

Postby XnTriq » Wed Aug 30, 2017 11:15 pm

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.


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