Path: csiph.com!newsfeed.hal-mli.net!feeder3.hal-mli.net!newsfeed.hal-mli.net!feeder1.hal-mli.net!ecngs!feeder.ecngs.de!xlned.com!feeder7.xlned.com!news2.euro.net!newsgate.cistron.nl!newsgate.news.xs4all.nl!post.news.xs4all.nl!not-for-mail Return-Path: X-Original-To: python-list@python.org Delivered-To: python-list@mail.python.org X-Spam-Status: OK 0.000 X-Spam-Evidence: '*H*': 1.00; '*S*': 0.00; 'example:': 0.03; 'url:launchpad': 0.05; 'except:': 0.07; 'pil': 0.07; 'suggestions,': 0.07; 'try:': 0.07; 'python': 0.09; 'anymore.': 0.09; 'retained': 0.09; 'self.data': 0.09; '2.7': 0.13; 'from:addr:swing.be': 0.16; 'from:addr:vincent.vandevyvre': 0.16; 'from:name:vincent vande vyvre': 0.16; 'message-id:@swing.be': 0.16; 'oqapy': 0.16; 'paqager': 0.16; 'received:mobistar.be': 0.16; 'resize': 0.16; 'subject:image': 0.16; 'url:bazaar': 0.16; 'url:head': 0.16; 'url:oqapy': 0.16; 'url:paqager': 0.16; 'url:py': 0.16; 'url:qarte': 0.16; 'v.v.': 0.16; '\xe9crit': 0.16; 'have:': 0.17; 'url:view': 0.18; 'skip:p 30': 0.20; 'import': 0.21; 'modifying': 0.22; 'work.': 0.23; 'seems': 0.23; 'header:In- Reply-To:1': 0.25; 'header:User-Agent:1': 0.26; 'skip:" 20': 0.26; 'img': 0.29; 'helpful': 0.30; 'info': 0.32; 'retain': 0.33; 'subject:data': 0.33; 'ubuntu': 0.33; 'to:addr:python-list': 0.33; 'hi,': 0.33; 'thanks': 0.34; 'saved': 0.35; 'add': 0.36; 'but': 0.36; 'data.': 0.36; 'subject:with': 0.36; 'skip:p 20': 0.36; 'ones': 0.37; 'data': 0.37; 'subject:: ': 0.38; 'to:addr:python.org': 0.39; 'received:192': 0.39; 'received:192.168': 0.40; 'email addr:gmail.com': 0.63; 'more': 0.63; 'received:80.12': 0.65; 'url:0': 0.67; 'gps': 0.91 Date: Mon, 17 Dec 2012 07:39:31 +0100 From: Vincent Vande Vyvre User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/17.0 Thunderbird/17.0 MIME-Version: 1.0 To: python-list@python.org Subject: Re: modify image and save with exif data References: <31bba35e-53e7-4a75-8ac8-ea10f4a8b4b8@googlegroups.com> In-Reply-To: <31bba35e-53e7-4a75-8ac8-ea10f4a8b4b8@googlegroups.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit X-BeenThere: python-list@python.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: General discussion list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Newsgroups: comp.lang.python Message-ID: Lines: 42 NNTP-Posting-Host: 2001:888:2000:d::a6 X-Trace: 1355726830 news.xs4all.nl 6984 [2001:888:2000:d::a6]:40457 X-Complaints-To: abuse@xs4all.nl Xref: csiph.com comp.lang.python:34957 Le 16/12/12 20:43, jwe.van.dijk@gmail.com a écrit : > I want to resize an image but retain the exif data > I now have: > import Image > > img = Image.open('photo.jpg') > img.thumbnail((800, 800), Image.ANTIALIAS) > img.save('photo800.jpg', 'JPEG') > > The saved image photo800.jpg has no exif info anymore. > I would so much like to have it retained in particular the exposure and gps data. > > I use Python 2.7 with PIL 1.17 on Ubuntu 12.04 > For exif reading/writing I use pyexiv2 0.3.2 but apparently you cannot add tags to an image that has none; only modifying existing ones seems to work. > > Thanks for any helpful suggestions, > Janwillem Hi, If a tag is not already set you can create it with pyexiv2. Example: ---------------------------------------------------------------------- self.data = pyexiv2.ImageMetadata(img.jpg) self.data.read() tag = "Exif.Image.ImageWidth" try: self.data[tag].value = sizes[0] except: self.data[tag] = pyexiv2.ExifTag(tag, sizes[0]) ----------------------------------------------------------------------- A more complete example: http://bazaar.launchpad.net/~vincent-vandevyvre/oqapy/serie-1.0/view/head:/oqapy-1.0/metadata.py -- Vincent V.V. Oqapy . Qarte . PaQager