From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1SWH7A-0002sn-54 for garchives@archives.gentoo.org; Mon, 21 May 2012 01:08:48 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 9F5CDE09DC; Mon, 21 May 2012 01:08:23 +0000 (UTC) Received: from mail-bk0-f53.google.com (mail-bk0-f53.google.com [209.85.214.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 868B1E092D for ; Mon, 21 May 2012 01:06:25 +0000 (UTC) Received: by bkcjk13 with SMTP id jk13so4048944bkc.40 for ; Sun, 20 May 2012 18:06:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=v7M2xIgaw9++0zlq74NgrB0xr0khGRFQRQCET7NaDU4=; b=YtxXwo8uzbbaKzPplqeoe8DVIwKuHlpTgk9nSOtzL4r12HTRGBgyg0Hij8+OOyERAT CQD6a06S0aV6gBtcczd8xFkkIoDetfoqZbM9ed3AcD/+hmO4j7VkiyvIC6dxmg1UDXgc fB8GBbk13By/Hy/Trb4FzPWm1UUhIpG6IpeLv0clRbCI7/r8W8r6fRDUcfPX7MFCop4W XPqExxBIRTIsnLOg5i0DdQ1m3J6AarOUqRhTCUYUXjPRS2PuW5ch4iIpbgIKK3NBkS6C 3Jm6qrALxry+djcaVEs/z4MReMEL7hYZ++LTXSf9CEq9n9olT76T6+ZpAUczxnowqFvx aKxg== Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.205.137.17 with SMTP id im17mr7372217bkc.9.1337562384475; Sun, 20 May 2012 18:06:24 -0700 (PDT) Received: by 10.204.42.207 with HTTP; Sun, 20 May 2012 18:06:24 -0700 (PDT) In-Reply-To: <20120521003339.GA2980@ca.inter.net> References: <20120512132257.GA2968@ca.inter.net> <20120515025033.GB2969@ca.inter.net> <20120517043419.GC2965@ca.inter.net> <20120519043828.GB2989@ca.inter.net> <4613CE50-114F-4B8D-BBC1-188F6D30BC21@stellar.eclipse.co.uk> <20120521003339.GA2980@ca.inter.net> Date: Sun, 20 May 2012 21:06:24 -0400 Message-ID: Subject: Re: [gentoo-user] merging or fitting images together From: Michael Mol To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 8e06d430-7237-4c80-8216-08ddda7acb30 X-Archives-Hash: 50e64f0e5528b6a61afd0be852967726 On Sun, May 20, 2012 at 8:33 PM, Philip Webb wrote: > 120520 Michael Mol wrote: >> as Philip later remarked, it turns out the lens was likely a 75mm prime > > The picture of the camera looks exactly what I remember, > tho' there might have been different models with different lenses. > It was a very good camera for its time. I'll say! Based on that pic, other things you've said, and the information I found[1], that's an Ikonta 521 B with a Tessar f/3.5 lens, which appears to have been a high-end lens. Meanwhile, all of the lenses for that camera appear to have been 75mm; the big difference appears to be f-stop, which has an impact on depth-of-field/bokeh. And an f/3.5 lens isn't something your modern DSLR's kit lens can usually do. [1] http://camerapedia.wikia.com/wiki/Zeiss_Ikon_Ikonta > >> The leftmost portion will never look all that great, >> as he captured the Sun setting behind a building >> or maybe that's a water spot > > The Sun was indeed setting to the left at that time + date, > but the bluish blemish is some sort of physical decay in the negative, > which was stored in a cardboard box for =C2=A0c 55 yr =C2=A0without being= touched. > >> If these source JPG files are scans of paper photos > > No, they're =C2=A02 =C2=A0overlapping scans of the same negative, > whose size is =C2=A058 x 43 mm =C2=A0=3D =C2=A02,3 x 1,7 inch . Ah. Well, the same holds true; a higher-resolution scan of the source image, stored in an HDR image format (such as 16-bit-per-channel TIFF, 16-bit-per-channel PNG, or OpenEXR) would ultimately give better results. Any of the 16-bit-per-channel formats would increase the available dynamic range (of the format, at least) by a factor of 16, at least. (IIRC, JPEG models luminance in 12 bits, and, for monochrome images, that's at least somewhat advantageous over 8-bit-per-channel grayscale or RGB formats.) > >> Anyway, the final Hugin pto file is here: http://pastebin.com/gudxvAEa > > What is a 'pto' file ? -- I downloaded it & it's text. It's a Hugin project file; you can load that file with Hugin. It assumes the two source JPEG files are in the same directory. > >> And the final stitch is here: >> http://img407.imageshack.us/img407/2030/brum3068brum30702.jpg > > All Firefox gives me is a black window : can you check ? Works on my system. It comes up all-black in geeqie, though; I had to load it in Chrome. Also loads fine in Gimp 2.6. --=20 :wq