New scaler algo (kopf/Lischinski) \ VOGONS

New scaler algo (kopf/Lischinski)

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First post, by krom

Posted on 2011-06-06, 22:59

krom Offline

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Hello everyone,

I love scaler effects (HQnx in particular : HQ2x : different versions ? )

I just want to say that two scientists kopf and Lischinski have created a very interesting new scaler algo :
http://research.microsoft.com/en-us/um/people/kopf/pixelart/
http://dropdo.com/2Rm/Depixelizing%20%20Pixel%20%20Art
http://www.pcworld.com/article/228729/algorit … r_graphics.html
http://www.youtube.com/watch?v=o2Fd-4NzB0w

I hope there will be some implementations soon that could be easily integrated in Dosbox 😀

Reply 1 of 7, by Dominus

Posted on 2011-06-07, 02:19

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Right now this scaler is not practical as it is only for stills and not for real time scaling. Afaik someone IS working on doing it real time but expect CPU usage to be very high

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Reply 2 of 7, by Freddo

Posted on 2011-06-07, 15:27

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Dominus wrote:
Right now this scaler is not practical as it is only for stills and not for real time scaling.

Indeed. According to the Results in the paper, it got a median of 0.62s per frame. Needless to say, DOSBox would be very slow with it, and totally unplayable.

Reply 3 of 7, by kekko

Posted on 2011-06-07, 16:59

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well, the scaler might be offloaded on another thread, or written with a shader so it can run on the gpu...

Reply 4 of 7, by VileR

Posted on 2011-06-08, 03:58

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Microsoft has its name on it - good luck trying to use it in something like DOSBox (even if it was fast enough for realtime)....

it does look pretty damn good though!

Reply 5 of 7, by h-a-l-9000

Posted on 2011-06-09, 18:48

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Some of the more complex ones don't look that good

1+1=10

Reply 6 of 7, by Miki Maus

Posted on 2011-06-09, 18:53

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The only problem I see is that there are no sharp corners in the resulting images.

Reply 7 of 7, by kolano

Posted on 2011-06-09, 20:19

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I'm a bit annoyed by the comparison shots. For HQ4x it looks like they applied the filter once and then scaled up the image by 4x rather than reapplying the HQ4x to get a 16x increase.

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