[video-codec] NHW Project - new -l13 very high compression quality setting - very competitive

Raphael Canut <nhwcodec@gmail.com> Sat, 08 December 2018 17:58 UTC

Return-Path: <nhwcodec@gmail.com>
X-Original-To: video-codec@ietfa.amsl.com
Delivered-To: video-codec@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 0B585130E4D for <video-codec@ietfa.amsl.com>; Sat, 8 Dec 2018 09:58:46 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.998
X-Spam-Level:
X-Spam-Status: No, score=-1.998 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 4MCCi2yBbNge for <video-codec@ietfa.amsl.com>; Sat, 8 Dec 2018 09:58:43 -0800 (PST)
Received: from mail-lj1-x236.google.com (mail-lj1-x236.google.com [IPv6:2a00:1450:4864:20::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6B00D130E31 for <video-codec@ietf.org>; Sat, 8 Dec 2018 09:58:43 -0800 (PST)
Received: by mail-lj1-x236.google.com with SMTP id 83-v6so6184855ljf.10 for <video-codec@ietf.org>; Sat, 08 Dec 2018 09:58:43 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=fob1I+8WFs6vf5bQXE40j+l0oAgdYLIH88stLcFw6ns=; b=EvDLuRamrNgb+FnmuAoAuOisQ9Lx/bTphjQkR8uuNVTrs0syYXURa6+QrCENigtskz NPdGsMUJONqEWkdCWGRbob1K836TeIXOBd0ijWiL2FqCZXNU4cgCiAcpaC8gJcX4XImF j3UCQC8w6ZShX8Lc8XGMgNiE6UN3YQCY4XBSLz+q4Mz8aYN88toM3dgdYlTKaFch8h72 GugGcIjdj8sZNcO2WK8Zh2kAPa+/BFbVcvVCsqTefOZ34sjHXy6fQ9YzchEKA+KVV6pK DDXi1fa+ihl0qXtMptqA2m2wpZJmv79WlxR23jwAPpvkME5vfqwoicjyiJNJD+WweSE6 odrQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=fob1I+8WFs6vf5bQXE40j+l0oAgdYLIH88stLcFw6ns=; b=WdwIaAc+e9GkyDfc5gkkwM9lRBp4u8FlL5/cZi+TPqgw4nYq2WTykjck1AscYyIkDq z52+/C67ntybxejeUyXonGu4iauZNZXJAyG7bwmrqIg5ctTEyxPB2dwCkNQvLrx322ks gSZSlEf1YrXzxjLGnrQxHLExYdc6YWD06tYPir8u9V2EdpQ9vS04zDpq5R4L7dbF2hIX KjxMEddlZnll4YK6NlUl6kbq2V8mvTMnuOqN0rQl6HJh6ahspsj9Ezl8FhLSP0+2hD4s g1EFzFuAOtIFa62D1MZUeaTS/AOEOkrihak081/x03TfrLlye/4cBnqMXX0pjJ8/TxK4 UHBg==
X-Gm-Message-State: AA+aEWbvtuxbYFcndlyKMYshhmkiDES2iqb1R6T8maESQ8JWt1S2PChg 4cEqjU9Jmdxk0Bbe3yYBoPra0X8VDwR6kMJ5oS91XDDG
X-Google-Smtp-Source: AFSGD/VVvs5tWg3l0D7cYond5yAfrUGcxuE608wu+U/DEPJR7Rz8/MVOnVU+P0heFO1OVMkiuX73fkIKW+ij6aKy3c0=
X-Received: by 2002:a2e:9d17:: with SMTP id t23-v6mr3776259lji.57.1544291920645; Sat, 08 Dec 2018 09:58:40 -0800 (PST)
MIME-Version: 1.0
From: Raphael Canut <nhwcodec@gmail.com>
Date: Sat, 08 Dec 2018 18:58:28 +0100
Message-ID: <CAKE58qGnJhWwN62BTL1JwRC9PWGnNvWwwNmMnnxoh_3oxFP88A@mail.gmail.com>
To: video-codec@ietf.org
Content-Type: multipart/alternative; boundary="0000000000005c128c057c867b91"
Archived-At: <https://mailarchive.ietf.org/arch/msg/video-codec/wfgAF2_KmBaSilBEWwsXsQ3uzOA>
Subject: [video-codec] NHW Project - new -l13 very high compression quality setting - very competitive
X-BeenThere: video-codec@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Video codec BoF discussion list <video-codec.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/video-codec>, <mailto:video-codec-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/video-codec/>
List-Post: <mailto:video-codec@ietf.org>
List-Help: <mailto:video-codec-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/video-codec>, <mailto:video-codec-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 08 Dec 2018 17:58:46 -0000

Hello,

I wanted to let you know that I have released a new -l13 very high
compression quality setting for the NHW Project (and we can still save
2.5KB per .nhw compressed file).

I find this -l13 quality setting very competitive (I will maybe use some of
its processing to improve -l12 setting).Compared to x265 (HEVC), I have
tested on 15 rather good quality images, and I visually prefer the results
of the NHW Project because it has more neatness.

Some technical details for this setting, I wash out details even more and
on the other hand I use these bits to still maintain a good
neatness/sharpness for edges/contours.

More at: http://nhwcodec.blogspot.com/

Also, as the nhw decoder is very fast, I could add to it a post-processing
function that will detect and remove aliasing (as the NHW Project can have
aliasing), but it is not that easy to detect and only detect aliasing...
Any suggestion would be very welcome!

Again I would be really interested in any opinion on this -l13 very high
compression quality setting that I find very competitive!

Many thanks for your time!
Cheers,
Raphael Canut