Talk:Blur: Difference between revisions
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==== MMX ==== | |||
:''A Known issue, with the MMX routines is the lack of full 8 bit precision in the calculations. '' | :''A Known issue, with the MMX routines is the lack of full 8 bit precision in the calculations. '' | ||
: O RLY? Can't find citation. 18:26, 21 September 2014 (CEST) | : O RLY? Can't find citation. 18:26, 21 September 2014 (CEST) | ||
:: Ian fixed that apparently a long time ago (v2.58). See http://avisynth2.cvs.sourceforge.net/viewvc/avisynth2/avisynth/src/filters/focus.cpp?r1=1.11&r2=1.12 . You can remove that comment. [[User:Admin|Admin]] 18:42, 21 September 2014 (CEST) | :: Ian fixed that apparently a long time ago (v2.58). See http://avisynth2.cvs.sourceforge.net/viewvc/avisynth2/avisynth/src/filters/focus.cpp?r1=1.11&r2=1.12 . You can remove that comment. [[User:Admin|Admin]] 18:42, 21 September 2014 (CEST) | ||
==== Kernel tech stuff deleted ==== | |||
:I removed the following as I think it of interest to developers only. | |||
<div {{NotaBeneWidthIndent|48|2|none}} > | |||
This is a simple 3x3-kernel blurring filter using the kernel [(1−1/2^amount)/2, 1/2^amount, (1−1/2^amount)/2]. The largest allowable argument for Blur is log2(3) (which is about 1.58), which corresponds to a ({{Frac|1|3}}, {{Frac|1|3}}, {{Frac|1|3}}) kernel. A value of 1.0 gets you a ({{Frac|1|4}}, {{Frac|1|2}}, {{Frac|1|4}}) kernel. | |||
</div> | |||
:please feel free to add it back if it is important to the article. --[[User:Raffriff42|Raffriff42]] 06:49, 28 January 2016 (CET) | |||
Revision as of 07:49, 28 January 2016
MMX
- A Known issue, with the MMX routines is the lack of full 8 bit precision in the calculations.
- O RLY? Can't find citation. 18:26, 21 September 2014 (CEST)
- Ian fixed that apparently a long time ago (v2.58). See http://avisynth2.cvs.sourceforge.net/viewvc/avisynth2/avisynth/src/filters/focus.cpp?r1=1.11&r2=1.12 . You can remove that comment. Admin 18:42, 21 September 2014 (CEST)
Kernel tech stuff deleted
- I removed the following as I think it of interest to developers only.
This is a simple 3x3-kernel blurring filter using the kernel [(1−1/2^amount)/2, 1/2^amount, (1−1/2^amount)/2]. The largest allowable argument for Blur is log2(3) (which is about 1.58), which corresponds to a (1/3, 1/3, 1/3) kernel. A value of 1.0 gets you a (1/4, 1/2, 1/4) kernel.
- please feel free to add it back if it is important to the article. --Raffriff42 06:49, 28 January 2016 (CET)
