From nobody Sun Feb 3 12:18:49 2019 Return-Path: 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 2D93A1277CC for ; Sun, 3 Feb 2019 12:18:48 -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 g_5f_3Gv7MH7 for ; Sun, 3 Feb 2019 12:18:46 -0800 (PST) Received: from mail-lj1-x22c.google.com (mail-lj1-x22c.google.com [IPv6:2a00:1450:4864:20::22c]) (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 E3566127598 for ; Sun, 3 Feb 2019 12:18:45 -0800 (PST) Received: by mail-lj1-x22c.google.com with SMTP id c19-v6so9944464lja.5 for ; Sun, 03 Feb 2019 12:18:45 -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=EnOZaXIhptkfKhzfkKLmwLurRGQwWwlzaIu231j8SXQ=; b=Nzmely6g6mQ5yx1cBxhkkAQ08Q1t3vNKItx0kPdHheGqsMCNGLNXLnlAVGT1nckhy3 2IBQ8sp6bZZdZH9px+lyXCs5XUXLKWlpQMBZ8fDkvCh6rgavmXr1FCG0W63pPL1XuwBZ 2UcJnUOlx0nTCHA2DtB2l2tHWjuaAHRnyKgjjGa79weytf8IUzpyq7VBLxoajBPe9N9Y VEXQI6FRZRgikKup01WLjWMgrHOiIbRcmfeVsW7uON0zb+bygDCRaG3KqR3wmMY37NVS +ZwXgKCaOaWftSMUmJdIOc2dOw5PlJDSLh0cdZGj6M0d61IkdCDgd+J/r9G1sgCw0y9E pVLA== 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=EnOZaXIhptkfKhzfkKLmwLurRGQwWwlzaIu231j8SXQ=; b=ndV+vUufdViz+3xxW/Nds9IXnbWBkHgsGkTCKzQA4XrsK07JLjlJ2TStSrDng0Q654 JY/uyJkhc860PQ0wzKQWSvQ3iC3HY5b7R7mDG1MUdZ0gV6ZMhA2anPzQ6pvFBeH92NIy N1K9cixjIiOQa2NEGX5AjeWRte/Ea3r0hmJ4ZnftGWL1KUphVo5N+ilN0TaYpLndfb7O 6lESk13xLgzuW8zQOovL7yfH0C8YplX2s7S8b6Cx43b9XvZSKn1X5fSLKywTFNJ410l8 wXvU0WNjxQ1Yq5Rr9gAK+M7+397l1O7kfL8FvCW8RN6o23UHRsVJMkDmaJqTCEWPrDoG TICA== X-Gm-Message-State: AHQUAubx7AJmqXlRns9Y1Qk14KPG4mIC9x/M40radZ8FxJqsYwYMcHii w3ak7ZZQAAiZVk8ZSC4f73rLEMmsB1kTZo2aX7r9AFIFAdU= X-Google-Smtp-Source: AHgI3IYmZU2Kv42bJlMFnDXYYnr4f1wbHDZpQ/1xInyX5G9TkbWxqsZGFSxr/swEI2pljsCsTgxy6skeRf2oJhasoyI= X-Received: by 2002:a2e:3a10:: with SMTP id h16-v6mr33419015lja.184.1549225123035; Sun, 03 Feb 2019 12:18:43 -0800 (PST) MIME-Version: 1.0 From: Raphael Canut Date: Sun, 3 Feb 2019 21:18:29 +0100 Message-ID: To: video-codec@ietf.org Content-Type: multipart/alternative; boundary="00000000000022c411058103158f" Archived-At: Subject: [video-codec] NHW Project - new -l17 "extreme" compression quality setting X-BeenThere: video-codec@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Video codec BoF discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 03 Feb 2019 20:18:48 -0000 --00000000000022c411058103158f Content-Type: text/plain; charset="UTF-8" Hello, I just wanted to let you know that I have added a new -l17 "extreme" compression quality setting to the NHW Project.I find this setting competitive with x265 (HEVC).Actually I have tested -l17 on 15 rather good quality images, and on these images I prefer the results of the NHW Project. We can still save 2.5KB per .nhw compressed files. More at: http://nhwcodec.blogspot.com/ . I start wondering if for extreme compression I should add a post-processing function in the decoder that would remove some aliasing for some images, just like HEVC intra has post-processing functions like deblocking and SAO filters. As detecting aliasing seems quite difficult, would it be possible to use for example machine learning, that would be trained to detect aliasing patterns? But first, do you find the results of the NHW Project at extreme compression good in their current state? Or should they be post-processed with aliasing and other? Any feedback is very welcome! Cheers, Raphael --00000000000022c411058103158f Content-Type: text/html; charset="UTF-8"
Hello,

I just wanted to let you know that I have added a new -l17 "extreme" compression quality setting to the NHW Project.I find this setting competitive with x265 (HEVC).Actually I have tested -l17 on 15 rather good quality images, and on these images I prefer the results of the NHW Project.

We can still save 2.5KB per .nhw compressed files.

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

I start wondering if for extreme compression I should add a post-processing function in the decoder that would remove some aliasing for some images, just like HEVC intra has post-processing functions like deblocking and SAO filters.

As detecting aliasing seems quite difficult, would it be possible to use for example machine learning, that would be trained to detect aliasing patterns?

But first, do you find the results of the NHW Project at extreme compression good in their current state? Or should they be post-processed with aliasing and other?

Any feedback is very welcome!

Cheers,
Raphael
--00000000000022c411058103158f-- From nobody Sun Feb 3 23:23:28 2019 Return-Path: X-Original-To: video-codec@ietf.org Delivered-To: video-codec@ietfa.amsl.com Received: from ietfa.amsl.com (localhost [IPv6:::1]) by ietfa.amsl.com (Postfix) with ESMTP id EB4D81292F1; Sun, 3 Feb 2019 23:23:18 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit From: internet-drafts@ietf.org To: Cc: video-codec@ietf.org X-Test-IDTracker: no X-IETF-IDTracker: 6.90.0 Auto-Submitted: auto-generated Precedence: bulk Reply-To: video-codec@ietf.org Message-ID: <154926499891.11033.15591727294151486376@ietfa.amsl.com> Date: Sun, 03 Feb 2019 23:23:18 -0800 Archived-At: Subject: [video-codec] I-D Action: draft-ietf-netvc-requirements-09.txt X-BeenThere: video-codec@ietf.org X-Mailman-Version: 2.1.29 List-Id: Video codec BoF discussion list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 04 Feb 2019 07:23:19 -0000 A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Internet Video Codec WG of the IETF. Title :