From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Amy Templeton Newsgroups: gmane.emacs.help Subject: Re: doc-view: Document quality and find-file Date: Mon, 17 Sep 2007 18:15:44 -0400 Message-ID: <874phthran.fsf@gmail.com> References: <87ejgxjp85.fsf@gmail.com> <4A631059-13B3-4D56-BAB7-058B1B85FE00@Web.DE> <87myvli0ec.fsf@gmail.com> <65AA63D1-C752-4276-8A23-D578F0A974B2@Web.DE> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1190067293 11982 80.91.229.12 (17 Sep 2007 22:14:53 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Mon, 17 Sep 2007 22:14:53 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Tue Sep 18 00:14:49 2007 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.50) id 1IXOrf-00068k-Je for geh-help-gnu-emacs@m.gmane.org; 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Mon, 17 Sep 2007 15:14:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:to:subject:references:from:x-now-playing:microsoft:face:date:in-reply-to:message-id:user-agent:mime-version:content-type; bh=iA3x9K5/XYtlLy4OPdfIMa2TbvbsutdVNl/d1Pvf5LM=; b=cGTX1uhcXgvyujC2nbJNcuInm83r139dpqnbkiZdmuf8G86JNHX2mANUxS4iooiKiDCU4jt+Wdi1jaqr3UCiUl6KHWFPB6a5LrNtuGEolLo71F41VpKl1CiBAq+ThYDJdFwNK455FaVtyZOPROIEVxSPudH1MdhaVytiQF4jgzI= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:to:subject:references:from:x-now-playing:microsoft:face:date:in-reply-to:message-id:user-agent:mime-version:content-type; b=gXd/10BHKXRzt8LvA76Bcs/aGIEX3sO0m+NVep+GeZc1kENVByE/WEc8xL4bvC/6iG2tmmoYrixikISI3fXyometakBWVWnjUM3RhBsIiWFDAdKK5CcKoQsLn360cV2p2jmQKcZ7nMF4d61/qbDn1uJoF8iQPtdSToSPrdrLueg= Original-Received: by 10.100.141.13 with SMTP id o13mr8464636and.1190067266156; Mon, 17 Sep 2007 15:14:26 -0700 (PDT) Original-Received: from localhost ( [132.162.244.214]) by mx.google.com with ESMTPS id c37sm6483467ana.2007.09.17.15.14.24 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 17 Sep 2007 15:14:25 -0700 (PDT) X-Now-Playing: Nothing playing right now Microsoft: Where even the version numbers aren't Y2K-compliant Face: iVBORw0KGgoAAAANSUhEUgAAADAAAAAwBAMAAAClLOS0AAAAFVBMVEUAAAAAAANaaXzP4O+c rcAAAQQOExuRlO0xAAACKElEQVQ4jW1UQXKkMAw0U8We4cCeN8b2A5ArD7CVOYNr5PPEwfz/CStj hkoyowNFqa1Wqy0Q4hFNT0N/X8TvoBLp7QmgmOO2SZqF6L/nW0qIaN1Gyw+g5tEiGq7puuYkCugt SrNJpYmWlo78kEaLTspMcZPc6a17FCg+rmllWTpcc5SHtiYgui3TTcecgiQKugJRgWdqWvXtI5iY ua5Kih4cLcOS8tdH0At9XecHYIuWRW5erxRX0AdwA5sXBlICI2mFiaqqYQSrozQklQ3XAHAwicHj RCvrQj+teizlhyg+Q8opZb2dEoDLlaoNFjUpqTwicKDNtJe0K4CODBQbATyANfMJBIfFRg97kb1X tZblO2VUASxDeFTcECSy38zly3G33+M+H6B0Ksmju6699won0aXgkQUDZJq3Khf4NpTbkrcewftM f80xh3V8fbLI4i785qqqiDChlAn9Pog16V6XgRjg+Qyrgh3RVJeruJuQp+D94af1U553oP1iiRsz TWhZMozse390Z3svx3AKjJIVEDSC039c8cqZaHgtjr1iG/1VFbXlLhLRfG46snl7TBQeF8vR8wLY avgUVT6BXgxxZJcUA++81F1/AoWM+bkGr2zt8P37MIqtLFtB4ke0FCWPbn/n2ZdFjO6y6uWkPxvR xf6Lz4AQ3Ty+N0MnnqJvL1M7P+dLjPfXQLvp5lWemi19Nt1zl6WNRr7m4m+KfwIvu8xRyvr6H1c0 rEpGcjoCAAAAAElFTkSuQmCC In-Reply-To: <65AA63D1-C752-4276-8A23-D578F0A974B2@Web.DE> (Peter Dyballa's message of "Mon\, 17 Sep 2007 23\:49\:26 +0200") User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/23.0.50 (gnu/linux) X-Detected-Kernel: Linux 2.6 (newer, 2) X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:47650 Archived-At: Peter Dyballa wrote: > Am 17.09.2007 um 20:59 schrieb Amy Templeton: > > article will be scanned > So your PDFs are not generated by some text system, but scanned pages from > books or magazines! This of course explains that the characters will look > ragged: printing is not perfect and scanning is even farther away from > perfection. I presume the corners of the characters might look better when > you use a resolution that is one half, one quarter, or one eighth etc. of > the original scan's resolution. This way small distortions will get > averaged. And this effect allows to reduce the amount of anti-aliasing > Ghostscript uses to create the PNG picture. Ah, of course. I guess that should've occurred to me. However, reduced sizes just seem to make it worse, oddly, whereas larger ones make it easier to read. I don't presume to have an explanation. > And depending on the actual bit depth of the scan you might adjust the PNG > device for which gs converts the PDF file. It's useless to expand an 8-bit > image to 24 bits. Fair enough. I'll look into it. > You know that you can't search a text in such a scan? Oh, you're right. I can do it in a lot of the articles I read, though, because they're from academic journals' sites, which I guess do things right. > OTOH, an OCR software could improve the scans ... OCR? I'm not familiar with that term. Also, I doubt I'd be able to convince my school to switch to anything decent...I mean, the campus computer repair/maintenance/IT people *brag* on their website that all the software they use and that they provide for students is proprietary. This is extra weird because in most other realms, my school is fairly activistic as these things go and so actually does a surprising number of things *right* (for example, working to provide handicapped access even to older buildings). But all that's another story altogether. Thanks for the tip, though. Amy -- If you are honest because honesty is the best policy, your honesty is corrupt.