From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.comp.tex.context/68788 Path: news.gmane.org!not-for-mail From: Peter Rolf Newsgroups: gmane.comp.tex.context Subject: Re: compresslevel and png graphics (mkiv) Date: Fri, 27 May 2011 17:34:23 +0200 Message-ID: <4DDFC47F.2070408@gmx.net> References: <4DDCF96A.3050703@gmx.net> <4DDD14BC.40203@wxs.nl> <4DDE30D0.9040204@gmx.net> <4DDE7D0F.3030002@gmx.net> <4DDF91BF.8030806@gmx.net> <20110527130914.171040@gmx.net> <4DDFBF39.9070100@gmx.net> Reply-To: mailing list for ConTeXt users NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Trace: dough.gmane.org 1306510490 25867 80.91.229.12 (27 May 2011 15:34:50 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Fri, 27 May 2011 15:34:50 +0000 (UTC) To: ntg-context@ntg.nl Original-X-From: ntg-context-bounces@ntg.nl Fri May 27 17:34:46 2011 Return-path: Envelope-to: gctc-ntg-context-518@m.gmane.org Original-Received: from balder.ntg.nl ([195.12.62.10]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1QPz3m-00083w-4N for gctc-ntg-context-518@m.gmane.org; Fri, 27 May 2011 17:34:46 +0200 Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 32286CAD93; Fri, 27 May 2011 17:34:45 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id MxoE8uELJ5RO; Fri, 27 May 2011 17:34:41 +0200 (CEST) Original-Received: from balder.ntg.nl (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 7CFBCCAD8A; Fri, 27 May 2011 17:34:41 +0200 (CEST) Original-Received: from localhost (localhost [127.0.0.1]) by balder.ntg.nl (Postfix) with ESMTP id 6A5C4CAD8A for ; Fri, 27 May 2011 17:34:40 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at balder.ntg.nl Original-Received: from balder.ntg.nl ([127.0.0.1]) by localhost (balder.ntg.nl [127.0.0.1]) (amavisd-new, port 10024) with LMTP id qWo7KFu7TpC2 for ; Fri, 27 May 2011 17:34:29 +0200 (CEST) Original-Received: from filter3-til.mf.surf.net (filter3-til.mf.surf.net [194.171.167.219]) by balder.ntg.nl (Postfix) with ESMTP id 633A7CAD63 for ; Fri, 27 May 2011 17:34:29 +0200 (CEST) Original-Received: from mailout-de.gmx.net (mailout-de.gmx.net [213.165.64.23]) by filter3-til.mf.surf.net (8.14.3/8.14.3/Debian-5+lenny1) with SMTP id p4RFYSZM032038 for ; Fri, 27 May 2011 17:34:29 +0200 Original-Received: (qmail invoked by alias); 27 May 2011 15:34:27 -0000 Original-Received: from ip-109-90-194-239.unitymediagroup.de (EHLO [192.168.178.3]) [109.90.194.239] by mail.gmx.net (mp011) with SMTP; 27 May 2011 17:34:27 +0200 X-Authenticated: #24293357 X-Provags-ID: V01U2FsdGVkX1+BAodnfkyBftSTIMQXh17OT/ZRD3e75peyMchymb 8lOfaKmNrIrjB7 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.2.17) Gecko/20110414 Lightning/1.0b2 Mnenhy/0.8.3 Thunderbird/3.1.10 In-Reply-To: X-Enigmail-Version: 1.1.1 X-Y-GMX-Trusted: 0 X-Bayes-Prob: 0.0001 (Score 0, tokens from: @@RPTN) X-CanIt-Geo: ip=213.165.64.23; country=DE; latitude=51.0000; longitude=9.0000; http://maps.google.com/maps?q=51.0000,9.0000&z=6 X-CanItPRO-Stream: uu:ntg-context@ntg.nl (inherits from uu:default, base:default) X-Canit-Stats-ID: 0eEMDysXl - ae94b1634182 - 20110527 X-Scanned-By: CanIt (www . roaringpenguin . com) on 194.171.167.219 X-BeenThere: ntg-context@ntg.nl X-Mailman-Version: 2.1.12 Precedence: list List-Id: mailing list for ConTeXt users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: ntg-context-bounces@ntg.nl Errors-To: ntg-context-bounces@ntg.nl Xref: news.gmane.org gmane.comp.tex.context:68788 Archived-At: Am 27.05.2011 17:19, schrieb luigi scarso: > On Fri, May 27, 2011 at 5:11 PM, Peter Rolf wrote: >> Am 27.05.2011 15:09, schrieb Hartmut Henkel: >>>>> @luigi: an ICC profile definitely breaks the rules >>>>> >>>>> The only chunks left are >>>>> >>>>> IHDR PNG image header: 5900x4094, 8bits/sample, truecolor, >>>> noninterlaced >>>>> IDAT PNG image data >>>>> .. >>>>> IDAT PNG image data >>>>> IEND end-of-image marker >>>>> >>>>> Mh, where is the show stopper? The compression method? >>>>> >>>> Looks like some of ConTeXt PDF/X-related settings is causing this. If I >>>> reduce the code to the pure picture, the '(PNG copy)' is triggered. >>>> Probably the active color management (default color space) is breaking >>>> the copy process here. >>> >> Sorry Hartmut, my last statement is complete BS. I made a 'blind' run in >> my lunch break, not inspecting the pdf. And sadly I had forgotten, that >> I changed the test file yesterday to use a small png test graphic >> instead of my big png. *brain vs. full stomach: 0:1* >> >> So the PDF/X settings have no influence on this. The big png is not >> 'copied'. >> Anyhow, this is not a serious problem and honestly I don't have that >> much time now. When I have some more time I will use gdb to find the >> failing condition in writepng.w. Will be interesting, the last time I >> used gdb is more than 10 years ago. > if you have an example with a public png I can take a look... > Thanks Luigi. 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