From: Soft Works <softworkz@hotmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] Rework color quantization in palette{gen,use}
Date: Sat, 5 Nov 2022 21:52:50 +0000
Message-ID: <DM8P223MB036559CBADEB920351843222BA3A9@DM8P223MB0365.NAMP223.PROD.OUTLOOK.COM> (raw)
In-Reply-To: <20221105152617.1809282-1-u@pkh.me>
> -----Original Message-----
> From: ffmpeg-devel <ffmpeg-devel-bounces@ffmpeg.org> On Behalf Of
> Clément Bœsch
> Sent: Saturday, November 5, 2022 4:26 PM
> To: ffmpeg-devel@ffmpeg.org
> Subject: [FFmpeg-devel] Rework color quantization in palette{gen,use}
>
> Hi,
>
> This patchset essentially fixes a few core problems in these filters
> and
> switches to a perceptual model.
>
> I've generated a report for each key commit on this (temporary) page:
> http://big.pkh.me/pal/ (warning: heavy page, ~500M; I did try to add
> some lazy
> loading of the images but I'm not sure it's actually working as
> expected).
>
> It is easy for me to add specific samples and re-run the whole thing,
> so feel
> free to suggest one.
The "rainbow Q" image would be nice to see in comparison.
Thanks,
softworkz
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next prev parent reply other threads:[~2022-11-05 21:53 UTC|newest]
Thread overview: 75+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-05 15:26 Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 01/15] Revert "avfilter/vf_palette(gen|use): support palettes with alpha" Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 02/15] avfilter: add palette utils Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 03/15] avfilter/palette{use, gen}: simplify a few alpha masks Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 04/15] avfilter/paletteuse: switch from u8[4] to u32 for color code Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 05/15] avfilter/paletteuse: name target color arg consistently in colormap functions Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 06/15] avfilter/paletteuse: remove unused alpha split dimension Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 07/15] avfilter/paletteuse: remove redundant alpha condition Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 08/15] avfilter/paletteuse: switch to a perceptual model Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 09/15] avfilter/palettegen: average color in linear space Clément Bœsch
2022-11-05 15:39 ` Paul B Mahol
2022-11-05 18:50 ` Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 10/15] avfilter/palettegen: move box variance computation in a dedicated function Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 11/15] avfilter/palettegen: comment on the unnormalized variance Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 12/15] avfilter/palettegen: base split decision on a perceptual model Clément Bœsch
2022-11-05 19:07 ` Andreas Rheinhardt
2022-11-08 21:09 ` Clément Bœsch
2022-12-27 23:20 ` Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 13/15] avfilter/palettegen: use variance per-axis instead of the range Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 14/15] avfilter/palettegen: rename longest to split_axis Clément Bœsch
2022-11-05 15:26 ` [FFmpeg-devel] [PATCH 15/15] avfilter/palette{use, gen}: update Copyright after recent changes Clément Bœsch
2022-11-05 15:44 ` [FFmpeg-devel] Rework color quantization in palette{gen,use} Paul B Mahol
2022-11-05 18:54 ` Clément Bœsch
2022-11-06 13:19 ` Ronald S. Bultje
2022-11-08 21:22 ` Clément Bœsch
2022-11-05 21:52 ` Soft Works [this message]
2022-11-06 17:09 ` Michael Niedermayer
2022-11-06 17:30 ` Michael Niedermayer
2022-11-08 21:14 ` Clément Bœsch
2022-12-31 12:11 ` Clément Bœsch
2023-01-02 21:57 ` Michael Niedermayer
2023-01-02 23:05 ` Clément Bœsch
2023-01-03 18:50 ` Michael Niedermayer
2022-11-06 19:46 ` Soft Works
2022-11-08 21:07 ` Clément Bœsch
2022-11-08 22:37 ` Soft Works
2022-12-27 23:31 ` Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] New iteration for the color quantization in palette{gen, use} Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 01/32] avfilter/palettegen: allow a minimum of 2 colors Clément Bœsch
2022-12-28 21:04 ` Tomas Härdin
2022-12-28 21:23 ` Clément Bœsch
2023-01-03 18:59 ` Tomas Härdin
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 02/32] avfilter/palette{gen, use}: revert support palettes with alpha Clément Bœsch
2023-01-03 19:11 ` Paul B Mahol
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 03/32] avfilter/palette{gen, use}: simplify a few alpha masks Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 04/32] avfilter/palette{gen, use}: add palette utils Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 05/32] avfilter/paletteuse: switch from u8[4] to u32 for color code Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 06/32] avfilter/paletteuse: name target color arg consistently in colormap functions Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 07/32] avfilter/paletteuse: remove unused alpha split dimension Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 08/32] avfilter/paletteuse: remove redundant alpha condition Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 09/32] avfilter/paletteuse: switch to a perceptual model Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 10/32] avfilter/palettegen: move box stats computation to a dedicated function Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 11/32] avfilter/palettegen: define the best axis to cut using the squared error Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 12/32] avfilter/palettegen: use box->major_axis without intermediate variable Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 13/32] avfilter/palettegen: always compute the box variance Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 14/32] avfilter/palettegen: rename variance to cut_score Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 15/32] avfilter/palettegen: change cut score from ∑e² to max e² Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 16/32] avfilter/palettegen: compute average color within compute_box_stats() Clément Bœsch
2022-12-27 23:17 ` [FFmpeg-devel] [PATCH v2 17/32] avfilter/palettegen: misc cosmetics Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 18/32] avfilter/palettegen: rename local variable box_weight to weight Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 19/32] avfilter/palettegen: switch to signed arithmetic Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 20/32] avfilter/palettegen: base box split decision on a perceptual model Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 21/32] avfilter/palettegen: add a warning about supporting only sRGB Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 22/32] avfilter/palettegen: make refs order deterministic Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 23/32] avfilter/palettegen: use libc qsort Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 24/32] avfilter/palette{gen, use}: update Copyright after recent changes Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 25/32] avfilter/palette: add lowbias32 hashing Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 26/32] avfilter/palettegen: use lowbias32 for color hashing Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 27/32] avfilter/paletteuse: " Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 28/32] avfilter/paletteuse: switch to recursive method Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 29/32] avfilter/paletteuse: remove alternative search methods Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 30/32] avfilter/paletteuse: remove mean error tool Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 31/32] avfilter/paletteuse: move r, g, b computation in a more local scope Clément Bœsch
2022-12-27 23:18 ` [FFmpeg-devel] [PATCH v2 32/32] avfilter/palette{gen, use}: misc for-loop cosmetics Clément Bœsch
2023-01-03 16:28 ` [FFmpeg-devel] New iteration for the color quantization in palette{gen, use} Clément Bœsch
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