[CinCV TNG] C41 in Cin-CVE

Einar Rünkaru einarrunkaru at gmail.com
Thu Aug 10 21:25:56 CEST 2017



On 08/10/2017 09:45 PM, igor_ubuntu wrote:
> 
> 
> 2017-08-10 20:37 GMT+03:00 Einar Rünkaru <einarrunkaru at gmail.com 
> <mailto:einarrunkaru at gmail.com>>:
> 
>     /
>     These are somehow described in commit descriptions
> 
>     https://git.cinelerra-cv.org/gitweb?p=einar/cinelerra.git;a=history;f=plugins/C41;hb=ee8c82c6751b62a4d4b99893344be765dca40aff
>     <https://git.cinelerra-cv.org/gitweb?p=einar/cinelerra.git;a=history;f=plugins/C41;hb=ee8c82c6751b62a4d4b99893344be765dca40aff>
> 
>     Einar
>     /
> 
> 
> 
> ..somehow/:
> 
> -----------------------------------
>   Plugin C41: add optional postprocessing
> 
> Added simple contrast + brightness postprocessing
> Coeficents are calculated for shaved area of frame
> Clamp pixel values and fix floating point exeptional values.
> ----------------------------------
> 
>   Plugin C41: calculate shaving box
> 
> Automatically calculate columns and rows so shave from frame.
> Row/column minimum and maximum difference must be greater than 0.05.
> This cuts away the border areas with constant color.
> 
> -----------------
>   Plugin C41: rendering shaving box into frame
> 
> Showing shaving box. Box is shown when "Compute negfix values",
> "Activate processing" and "Show active area" are all checked.
> -----------------------
> 
>   Plugin C41: make possible manually adjust the shaving box
> 
> Added four sliders to gui which move left, right, top and
> bottom shaving margins.
> Usage is not very intuitive: to have the effect, 'lock
> parameters' must be used twice.
> -------------------------------
> 
>   Plugin C41: new button for copying box values
> 
> Separate buttons for copying coeficents and
> bounding box coordinates.
> ----------------------/
> 
> /
> /
> ///Coef 1  Coef2  (inf  -nan)/
> .
> What do they mean here ? How ones work ?
> What they do ? There is no info in git commits.
> --------
> 
They are added at 'Plugin C41: add optional postprocessing'
> 
> Seems the CVE's C41 does not work properly.  CVO's C41 works.

Please elaborate. How does it not work properly?

Einar


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