[FFmpeg-cvslog] avfilter: add removegrain

[James Darnley]

On 2015-07-14 19:28, Robert Krüger wrote:
> On Sat, Jul 11, 2015 at 5:30 PM, Robert Krüger <krueger at lesspain.de> wrote:
> 
>>
>> On Wed, Jul 8, 2015 at 6:03 PM, Paul B Mahol <git at videolan.org> wrote:
>>
>>> ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Sat Jul  4
>>> 20:19:05 2015 +0000| [91748662bc024294d50e2e0542d727265e331105] |
>>> committer: Paul B Mahol
>>>
>>> avfilter: add removegrain
>>>
>>> Signed-off-by: Paul B Mahol <onemda at gmail.com>
>>>
>>>
>> This filter looks super interesting. Has anyone compared it to hqdn3d for
>> practical examples?
>>
> 
> I have tried various modes but so far all were visibly inferior to hqdn3d.
> Does the filter only operate spacially, i.e. in one frame at a time, trying
> to achieve the degraining by averaging in the one frame? The documentation
> gives that impression and that would at least be an explanation.

Yes it is a spatial only denoiser.  It is in fact the same as
RemoveGrain for Avisynth.  I'm sure that will help you look for more
information and comparisons.


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