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Efika 5200B Project
Reggae on Efika

in category Multimedia
proposed by Grzegorz Kraszewski on 21st February 2006 (accepted on 20th March 2006)

Blog Entry

  videoscale.filter
posted by Grzegorz Kraszewski on 6th April 2006

The Reggae class, I'm currently working on is videoscale.filter. As its name says it will be used for scaling pictures and video (in Reggae a picture is treated as a video stream with one single frame). The first algorithm implemented will be simple bilinear scaling. It is of course very simple, and often not enough for quality scaling of single images, but its speed will be valuable for scaling video in realtime. AltiVec acceleration is planned of course. Then I will move to more advanced algorithms: bicubic, B-splines and Lanczos (sinc()). I'm going to check if gfx card 3D unit may be used for scaling, it may be much faster.

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