Blured text after rotation

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XnRoot
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Joined: Thu Dec 17, 2015 9:08 pm

Blured text after rotation

Post by XnRoot » Wed Feb 06, 2019 3:08 pm

Hi,

i have a lot of scanned comics here and sometimes i have to rotate the page a little bit (offen only 0.1 or 0.2 degrees). after that very offen the text is a little but blurred. when i use gimp for that i have the same problem, but here i can change the interpolation method and get better results. i can't find any option like this in xnview. anti-alias is enabled, without anti-alias i can only rotate with higher steps (1.0 or 2.0 degrees). but doing this with gimp is annoying.

xnroot

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xnview
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Re: Blured text after rotation

Post by xnview » Wed Feb 06, 2019 3:14 pm

could you post original and output from XnView & Gimp?
Pierre.

XnRoot
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Re: Blured text after rotation

Post by XnRoot » Wed Feb 06, 2019 3:50 pm

The images? no problems with copyrights?

XnRoot
Posts: 11
Joined: Thu Dec 17, 2015 9:08 pm

Re: Blured text after rotation

Post by XnRoot » Wed Feb 06, 2019 3:59 pm

Here are the three examples. i only made screenshots of the first panel and the screenshot from gimp is bigger. the difference is not very high, i couldn't find a better example. first is gimp rotate 0.2 with lohalo interpolation. second is the original and third is xnview also rotated 0.2 degrees.
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Screenshot_20190206_165305.png
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xnview
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Re: Blured text after rotation

Post by xnview » Thu Feb 07, 2019 8:27 am

ok, could you send me the file by PM and i'll check
Pierre.

XnRoot
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Re: Blured text after rotation

Post by XnRoot » Thu Feb 07, 2019 8:50 am

What file? The whole file not only the partly screenshot?

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