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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The best would be swf, but most people don’t have vector images, or tools to make swfs. Vectors will scale with no loss of quality.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Then .png, which is a kind of hybrid vector / raster format, but performs pretty well.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>After that the issues become more difficult: if you use a jpg or a gif, and allow the user any control over the final size, there are going to be issues.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> xerte-bounces@lists.nottingham.ac.uk [mailto:xerte-bounces@lists.nottingham.ac.uk] <b>On Behalf Of </b>Alistair McNaught<br><b>Sent:</b> 15 January 2012 08:29<br><b>To:</b> Xerte discussion list<br><b>Subject:</b> [Xerte] Re: FW: jpgs degrading - is this a new phenomenon?<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:36.0pt'><o:p> </o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Quick update</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thanks very much all for the further advice and help.</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I might have confused things a bit by using table image examples – these weren’t the actual images I was trying to get in the LO, I just knew that they would demonstrate the issue best. </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>For my own purposes it’s reasonably simple to swap jpgs for gifs or pngs but I might need to look at adding some guidance for tutors on choosing the best image format and having different free tools to swap from one to the other as required. Whilst the basic gif v jpg guidance is straightforward enough to understand there are often images (like logos with graduated colour swatches) that don’t neatly fall into one category or the other. Maybe ‘if in doubt use png’ is the best rule of thumb.</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> xerte-bounces@lists.nottingham.ac.uk [mailto:xerte-bounces@lists.nottingham.ac.uk] <b>On Behalf Of </b>Pat Lockley<br><b>Sent:</b> 14 January 2012 21:04<br><b>To:</b> Xerte discussion list<br><b>Subject:</b> [Xerte] Re: FW: jpgs degrading - is this a new phenomenon?</span><o:p></o:p></p></div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'>I think you notice it on these pictures as JPEGs don't handle lines very well.<o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>Usually the internet rule is when using text, use a GIF as gifs don't pixelate lines like a jpg does.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt'>When given big blocks of colour, like on a photo, jpgs are fine<o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'>On Sat, Jan 14, 2012 at 8:37 PM, Ron Mitchell <<a href="mailto:ronm@mitchellmedia.co.uk">ronm@mitchellmedia.co.uk</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Alistair</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This is all quite predictable and not a server or flash player issue - just a simple fact of viewing raster images at different to actual size. Your LO is set to full screen try switching to default so it's 800 x 600 and you'll see that some pages look better at that size and others look better at full screen? </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It wouldn't help with all your images but for the example here what about using the Charts > Table page type e.g. <a href="http://itq.jisctechdis.ac.uk/xerte/play_85" target="_blank">http://itq.jisctechdis.ac.uk/xerte/play_85</a></span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>HTH</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Ron</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><a name="134ddf11c0448f34__MailEndCompose"><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span></a><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a> [mailto:<a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a>] <b>On Behalf Of </b>Alistair McNaught<br><b>Sent:</b> 14 January 2012 17:45<br><b>To:</b> Xerte discussion list<br><b>Subject:</b> [Xerte] Re: FW: jpgs degrading - is this a new phenomenon?</span><o:p></o:p></p></div></div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A final version with 3 pairs of images (jpg v png) at sizes 300, 360 and 550 respectively. In all cases jpgs show significant degradation. PNGs only show degradation at the 550 px point where they are being shrunk from 550 to 470 to fit the space.</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>In the short term I’ll stop using jpegs in favour of pngs and gifs but in the long term I’d be really interested to know why jpegs fare so badly. They will be the format of choice for a lot of less technically inclined users so if it ispossible to determine whether the code has changed and if so to change it back I’d be very grateful. </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>That’s all the excitement needed for one weekend – I’m signing out now!</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>All the best and thanks for the rapid responses Dave and Pat.</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>A</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a> [<a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">mailto:xerte-bounces@lists.nottingham.ac.uk</a>] <b>On Behalf Of </b>Pat Lockley<br><b>Sent:</b> 14 January 2012 17:08<br><b>To:</b> Xerte discussion list<br><b>Subject:</b> [Xerte] Re: FW: jpgs degrading - is this a new phenomenon?</span><o:p></o:p></p></div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'>It looks like XOT is stretching them, and so is having to fill in bits (which is degradation via interpolation, which sounds redundant but lacking the words to find a better one - negative amelioration?)<o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'>The originals are fine.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt'>What's the maximum size? 640 something?<o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'>On Sat, Jan 14, 2012 at 5:02 PM, Alistair McNaught <<a href="mailto:Alistair.McNaught@heacademy.ac.uk" target="_blank">Alistair.McNaught@heacademy.ac.uk</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hmmm – here’s the test I did for Pat:</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>First 2 slides of </span><a href="http://itq.jisctechdis.ac.uk/xerte/play_82" target="_blank">http://itq.jisctechdis.ac.uk/xerte/play_82</a> show significant quality difference yet the image below shows they are virtually identical in their raw form.<o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=340 height=318 id="_x0000_i1025" src="cid:image001.png@01CCD439.10476300"></span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Curiouser and curiouser..</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a> [mailto:<a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a>] <b>On Behalf Of </b>Dave Burnett<br><b>Sent:</b> 14 January 2012 16:56<br><b>To:</b> Xerte list</span><o:p></o:p></p><div><div><p class=MsoNormal style='margin-left:36.0pt'><br><b>Subject:</b> [Xerte] Re: FW: jpgs degrading - is this a new phenomenon?<o:p></o:p></p></div></div></div></div><div><div><p class=MsoNormal style='margin-left:36.0pt'> <o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><br></span><span style='font-size:11.5pt;font-family:"Calibri","sans-serif";color:#1F497D'>>does it look equally blurry on your PC on that slide?</span><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Yes.</span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Vista/Chrome</span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><div><div class=MsoNormal align=center style='margin-left:36.0pt;text-align:center'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From: <a href="mailto:Alistair.McNaught@HEAcademy.ac.uk" target="_blank">Alistair.McNaught@HEAcademy.ac.uk</a><br>To: <a href="mailto:xerte@lists.nottingham.ac.uk" target="_blank">xerte@lists.nottingham.ac.uk</a><br>Date: Sat, 14 Jan 2012 16:48:14 +0000<br>Subject: [Xerte] Re: FW: jpgs degrading - is this a new phenomenon?</span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Dave / Pat – thanks for quick responses</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Yes these shots are all on same laptop – it appears to be a new problem. </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The only PCs I have access to are all the same spec but I’d be interested if it looks different on other people’s PCs – for example the LO I first spotted it on yesterday is at </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://itq.jisctechdis.ac.uk/xerte/play_79" target="_blank">http://itq.jisctechdis.ac.uk/xerte/play_79</a> and page 14 is a slide show navigator. Slide 4 on page 14 is shown below as it renders for me and the original image is also shown superimposed. Notice how the table has become blurry. It wasn’t always like that .. does it look equally blurry on your PC on that slide?</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><img border=0 width=654 height=609 id="_x0000_i1027" src="cid:image002.png@01CCD439.10476300"></span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Alistair</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal style='margin-left:36.0pt'><b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a> [mailto:<a href="mailto:xerte-bounces@lists.nottingham.ac.uk" target="_blank">xerte-bounces@lists.nottingham.ac.uk</a>] <b>On Behalf Of </b>Dave Burnett<br><b>Sent:</b> 14 January 2012 16:36<br><b>To:</b> Xerte list<br><b>Subject:</b> [Xerte] FW: jpgs degrading - is this a new phenomenon?</span><o:p></o:p></p></div></div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Sorry, those are both on the same screen aren't they.</span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>How about Flash version then?</span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>I'm just wondering if they way Flash handles the rendering.</span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Same effect on a different machine? </span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From: <a href="mailto:d_b_burnett@hotmail.com" target="_blank">d_b_burnett@hotmail.com</a></span><o:p></o:p></p></div><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>To: <a href="mailto:xerte@lists.nottingham.ac.uk" target="_blank">xerte@lists.nottingham.ac.uk</a></span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Subject: RE: [Xerte] jpgs degrading - is this a new phenomenon?<br>Date: Sat, 14 Jan 2012 11:28:37 -0500</span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Latest video drivers?</span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><div><div class=MsoNormal align=center style='margin-left:36.0pt;text-align:center'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><hr size=2 width="100%" align=center></span></div><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:12.0pt;margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From: <a href="mailto:Alistair.McNaught@HEAcademy.ac.uk" target="_blank">Alistair.McNaught@HEAcademy.ac.uk</a><br>To: <a href="mailto:xerte@lists.nottingham.ac.uk" target="_blank">xerte@lists.nottingham.ac.uk</a><br>Date: Sat, 14 Jan 2012 16:26:22 +0000<br>Subject: [Xerte] jpgs degrading - is this a new phenomenon?</span><o:p></o:p></p><div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>This seems weird but yesterday I was demonstrating a learning object to some colleagues I was working with and I noticed that the images which I’d carefully crafted to be crisp and sharp and fit the available space were looking pixellated and ugly with lots of jpegy artefacts (like when you save a jpeg at too coarse a setting and get fuzz around lines etc). The originals I uploaded are much higher quality. </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><img border=0 width=630 height=418 id="_x0000_i1029" src="cid:image003.png@01CCD439.10476300"></span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>However no such degradation is apparent with PNG files as shown below: (as before the original is at the bottom and the Xerte rendered version at the top). In this case the quality is indistinguishable.</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><img border=0 width=396 height=422 id="_x0000_i1030" src="cid:image004.png@01CCD439.10476300"></span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Is something taking place in the upload that degrades the jpgs or how is this oddity explained. For the short term I can use PNGs rather than JPGs but it introduces an extra work layer and It doesn’t help the dozens of LOs that used to look crisp and now look fuzzy. Any suggestions gratefully received!</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>A</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>Alistair McNaught</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>Senior Advisor </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#F79646'>JISC</span></b><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> <span style='color:#31849B'>TechDis</span></span></b><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>C/O The Higher Education Academy Building</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>Innovation Way</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>York Science Park</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>YORK</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>YO10 5BR</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#17365D'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>07870567659</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#548DD4'>Skype: alistair_techdis</span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#0070C0'><a href="http://www.jisctechdis.ac.uk/?utm_source=emailsig&utm_medium=email&utm_campaign=sitelaunchmail" target="_blank"><span style='color:#0070C0'>http://www.jisctechdis.ac.uk</span></a> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><u><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#0070C0'><a href="http://www.scoop.it/t/inclusive-teaching-and-learning" target="_blank">http://www.scoop.it/t/inclusive-teaching-and-learning</a> </span></u><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:#4F6228'>Interested in pragmatic inclusion- focused staff development? <br>See JISC TechDis <a href="http://www.jisctechdis.ac.uk/techdis/pages/detail/floating_pages/ITQ_Accessible_IT_Practice" target="_blank"><span style='color:#4F6228'>ITQ for accessible IT practice</span></a> information and <a href="http://itq.jisctechdis.ac.uk/mod/resource/view.php?id=5" target="_blank"><span style='color:#4F6228'>taster resource</span></a>. </span><o:p></o:p></p><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span><o:p></o:p></p></div><p class=MsoNormal style='margin-left:36.0pt'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>This email is confidential and may be privileged. 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