Quality of resizer

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Xn User
Posts: 227
Joined: Sat Jan 05, 2019 1:16 pm

Quality of resizer

Post by Xn User »

Hi )

Default in XnView MP I can select resizer as None / Biliear / Bicubic / Spline 16 / Spline 36 / Lanczos 3 / Lanczos 4
but I can not select Mitchel or Lanczos 2 , however I see what images deformation if I use bilinear filtration , if I select Lanczos 3 I see artefacts , images very sharp of Lanczos filters , but not deformated , please , improve bilinear filtration or add Mitchel and Nearest Neighbour as variant for view mode in XnViewMP )


Why so ?
https://www.mediafire.com/file/ul1hh7df ... v.avi/file
https://www.mediafire.com/file/s3jqnjg5 ... p.avi/file
why in XnView MP It is so deformed image if use bilinear filter ?

At all you can compare quality resize in XnConvert / XnView MP and FastStone Image Resizer

Original image:
https://www.mediafire.com/view/m6lcfv9i ... r.png/file
https://www.mediafire.com/view/lw067w8k ... n.png/file
General
Bell resizer
https://www.mediafire.com/view/wttbsd4o ... r.png/file
https://www.mediafire.com/view/ff89bhd0 ... n.png/file
Bicubic resizer
https://www.mediafire.com/view/7q48bzta ... r.png/file
https://www.mediafire.com/view/8ikp0nbj ... n.png/file
Bilinear resizer
https://www.mediafire.com/view/d5ve476p ... r.png/file
https://www.mediafire.com/view/kt9pxums ... n.png/file
BSpline resizer
https://www.mediafire.com/view/g0ut5z6q ... r.png/file
https://www.mediafire.com/view/cy6pg8qi ... n.png/file
Lanczos2 resizer
https://www.mediafire.com/view/7idmxd91 ... r.png/file
https://www.mediafire.com/view/pu0zzdiy ... n.png/file
Lanczos3 resizer
https://www.mediafire.com/view/tc8l9ms6 ... r.png/file
https://www.mediafire.com/view/7j2dl2an ... n.png/file
Nearest resizer
https://www.mediafire.com/view/7lu1z45u ... r.png/file
https://www.mediafire.com/view/usdcb56w ... n.png/file
Only in FastStone Image Resizer
Fadtline resizer (only in FastStone Image Resizer)
https://www.mediafire.com/view/tlla3hzm ... r.png/file
None / Box resizer (only in FastStone Image Resizer)
https://www.mediafire.com/view/t75b94td ... r.png/file
Triagle resizer (only in FastStone Image Resizer)
https://www.mediafire.com/view/8bwq0ym1 ... r.png/file
Only in XnView MP / XnConverrt
Gasian resizer (only in XnVirw MP / XnConvert)
https://www.mediafire.com/view/qwdnjjrh ... n.png/file
Hanning resizer (only in XnVirw MP / XnConvert)
https://www.mediafire.com/view/pyvrkrsz ... n.png/file

this link on other images in one archive https://www.mediafire.com/file/36agvn35 ... s.rar/file

also disrupted geometry in Bilinear filtering https://www.mediafire.com/file/3ti6zsam ... y.avi/file

please add mitchell in viewer https://www.mediafire.com/view/wfbyvipk ... y.png/file

At all I think , what need add in viewer mode Mitchell , and also need add description about filters , what and when better use )

Also , as I understand , cubic in XnConvert is Bicubic filter , but why so blurry ?
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