[FFmpeg-user] remap with pixel interpolation

[Paul B Mahol]

On Wed, Jun 29, 2022 at 9:18 AM Michael Koch <astroelectronic at t-online.de>
wrote:

> Am 29.06.2022 um 09:15 schrieb Paul B Mahol:
> > On Wed, Jun 29, 2022 at 8:56 AM Michael Koch <
> astroelectronic at t-online.de>
> > wrote:
> >
> >> Suggestion for improvement:
> >> Add pixel interpolation to the remap filter. For example if the output
> >> size is 800x600, multiply the values in the mapping files by 16 so that
> >> the range is 12800x9600, and use the 4 least significant bits for pixel
> >> interpolation.
> >>
> >>
> > Very bad suggestion.
> >
> > Better make remap filter use float pixel format for map files.
>
> Which image format supports float grayscale?
>

PFM (Portable FloatMap)

I just gonna add grayf32 support to it.



> Michael
>
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