Re: [WSG] Mac (Safari) rendering of colours
Thanks for the help everyone. It's a little easier to handle now I know it's a browser bug, not a platform issue. -- Cameron Adams W: www.themaninblue.com --- Philippe Wittenbergh [EMAIL PROTECTED] wrote: On Sep 16, 2004, at 1:31 pm, Cameron Adams wrote: a Mac using a display of millions of colours (in Safari) renders the images in the main grey panel differently, thus creating a visible line on either side of the content. Whereas on PC it is seamless. It happens only in Safari on my Mac. Omniweb, which uses nearly the same rendering engine doesn't show the problem. And Firefox of IE or Opera7.5 are perfectly fine. With Omniweb, I can enable or disable the use of ColorSync, it doesn't make any difference on your site (images aren't coded to use Colorsync, it shouldn't make any difference anyway). Safari has serious problems with display of colours in images. It is really bad with PNG files - try to match a flat coloured 32bit PNG to the same HTML colour set in the stylesheets it can be ugly, the images are on average 10% darker. The only advice I can give: use all the same format - either jpeg or gif, don't mix in an environment as yours. Philippe ---/--- Philippe Wittenbergh now live : http://emps.l-c-n.com/ code | design | web projects : http://www.l-c-n.com/ IE5 Mac bugs and oddities : http://www.l-c-n.com/IE5tests/ ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** __ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
Re: [WSG] Mac (Safari) rendering of colours
Philippe was saying that it didn't happen in OW (which uses an older version of webcore), so either it's a problem with a new build (my guess) or in the webkit framework. Jake Quoting Michael Donnermeyer [EMAIL PROTECTED]: Cameron, Sometimes there's an issue with the gamma difference between Macs and PCs. I don't think that's entirely the case here. I've had some issues with images exported from Photoshop CS (probably ver. 7 too) using the 'save for web' feature or whatever it's called. That being them having minor color difference issues, but I don't think thats the problem either. If you collapse the 'feature box' above the grey box, the shade difference disappears. When it isn't collapsed I swear I can see a faint continuation of the difference over the diagonal line background to the feature box. Like there's a 'box' there with some light transparency (5%) causing the issue. I dropped the screen from millions of colors to thousands and it made the 'ghost box' more apparent on my iBook. I would probably guess it to be a bug in KHTML, since it won't duplicate in Firefox, Mozilla 1.7, Opera 7.5, Camino, or IE5.2 (what little of it I could see...totally fubar'd in IE). It also wouldn't duplicate in IE 6 under Win2kPro/VPC on the same machine. It did duplicate in Echo, which is another KHTML based browser on the Mac platform. ~MD On Sep 16, 2004, at 00:31, Cameron Adams wrote: Hi, I was wondering whether anyone knew why on my site: http://www.themaninblue.com/ a Mac using a display of millions of colours (in Safari) renders the images in the main grey panel differently, thus creating a visible line on either side of the content. Whereas on PC it is seamless. I'm guessing it arises because I use a JPEG for the main middle part, and GIFs for the two sides (or vice versa) and the computer is rendering the colours differently? But on a PC machine it's all fine and no discrepancies can be seen. This also happens on another site I'm developing, where the CSS background-color differs from the JPEG background image on Mac, but looks fine on PC. If anyone knows a solution it would be much appreciated. -- Cameron Adams W: www.themaninblue.com ___ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
Re: [WSG] Mac (Safari) rendering of colours
On Sep 16, 2004, at 4:30 pm, Jake Badger wrote: Philippe was saying that it didn't happen in OW (which uses an older version of webcore), so either it's a problem with a new build (my guess) or in the webkit framework. Hmm - as far as I remember, I did notice some strange colour shifts with PNG files in Safari before upgrading OS X 10.3 and the more recent versions of Webkit/Webcore. I made a very quick testfile [1]- a coloured square PNG in the middle of div with the same background-colour. Safari 1.2.3.v125.9 shows a difference (screenshot [2]); Omniweb 5.0 displays it correctly. Omniweb uses Webcore and doesn't rely on the Webkit frameworks. Anyone running OS X 10.2 could check ? Anyway, it is a bloody annoying bug. [1] http://dev.l-c-n.com/safari/colorCheck.php [2] http://dev.l-c-n.com/safari/images/Safari_colourTest.png Philippe ---/--- Philippe Wittenbergh now live : http://emps.l-c-n.com/ code | design | web projects : http://www.l-c-n.com/ IE5 Mac bugs and oddities : http://www.l-c-n.com/IE5tests/ ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
Re: [WSG] Mac (Safari) rendering of colours
Are you sure? When I open it in OW (5.0.1 v558.48) is seems to happen, making me think that it IS a webcore/khtml issue. On 16/09/2004, at 6:54 PM, Philippe Wittenbergh wrote: On Sep 16, 2004, at 4:30 pm, Jake Badger wrote: Philippe was saying that it didn't happen in OW (which uses an older version of webcore), so either it's a problem with a new build (my guess) or in the webkit framework. Hmm - as far as I remember, I did notice some strange colour shifts with PNG files in Safari before upgrading OS X 10.3 and the more recent versions of Webkit/Webcore. I made a very quick testfile [1]- a coloured square PNG in the middle of div with the same background-colour. Safari 1.2.3.v125.9 shows a difference (screenshot [2]); Omniweb 5.0 displays it correctly. Omniweb uses Webcore and doesn't rely on the Webkit frameworks. Anyone running OS X 10.2 could check ? Anyway, it is a bloody annoying bug. [1] http://dev.l-c-n.com/safari/colorCheck.php [2] http://dev.l-c-n.com/safari/images/Safari_colourTest.png Philippe ---/--- Philippe Wittenbergh now live : http://emps.l-c-n.com/ code | design | web projects : http://www.l-c-n.com/ IE5 Mac bugs and oddities : http://www.l-c-n.com/IE5tests/ ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
Re: [WSG] Mac (Safari) rendering of colours
What about PS color settings. Is it possible that the color space is off? Tom Livingston Senior Multimedia Artist mlinc.com Get FireFox http://spreadfirefox.com/community/?q=affiliatesid=0t=1 On Sep 16, 2004, at 4:54 AM, Philippe Wittenbergh wrote: On Sep 16, 2004, at 4:30 pm, Jake Badger wrote: Philippe was saying that it didn't happen in OW (which uses an older version of webcore), so either it's a problem with a new build (my guess) or in the webkit framework. Hmm - as far as I remember, I did notice some strange colour shifts with PNG files in Safari before upgrading OS X 10.3 and the more recent versions of Webkit/Webcore. I made a very quick testfile [1]- a coloured square PNG in the middle of div with the same background-colour. Safari 1.2.3.v125.9 shows a difference (screenshot [2]); Omniweb 5.0 displays it correctly. Omniweb uses Webcore and doesn't rely on the Webkit frameworks. Anyone running OS X 10.2 could check ? Anyway, it is a bloody annoying bug. [1] http://dev.l-c-n.com/safari/colorCheck.php [2] http://dev.l-c-n.com/safari/images/Safari_colourTest.png Philippe ---/--- Philippe Wittenbergh now live : http://emps.l-c-n.com/ code | design | web projects : http://www.l-c-n.com/ IE5 Mac bugs and oddities : http://www.l-c-n.com/IE5tests/ ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
RE: [WSG] Mac (Safari) rendering of colours
Could it be because of the colour depth on the mac? Jpeg makes an approximation of the colours used (like in the original file) for better optimisation. So on the PC its using a different colour depth and the jpeg appears okay but on the mac it has a more limited depth so it doesnt? Pencil tool and cross hatch like a mofo =) Tim Hill Computer Associates Graphic Artist tel: +612 9937 0792 fax: +612 9937 0546 [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Cameron Adams Sent: Thursday, 16 September 2004 2:32 PM To: [EMAIL PROTECTED] Subject: [WSG] Mac (Safari) rendering of colours Hi, I was wondering whether anyone knew why on my site: http://www.themaninblue.com/ a Mac using a display of millions of colours (in Safari) renders the images in the main grey panel differently, thus creating a visible line on either side of the content. Whereas on PC it is seamless. I'm guessing it arises because I use a JPEG for the main middle part, and GIFs for the two sides (or vice versa) and the computer is rendering the colours differently? But on a PC machine it's all fine and no discrepancies can be seen. This also happens on another site I'm developing, where the CSS background-color differs from the JPEG background image on Mac, but looks fine on PC. If anyone knows a solution it would be much appreciated. -- Cameron Adams W: www.themaninblue.com ___ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
RE: [WSG] Mac (Safari) rendering of colours
From the way I read it they're both at 32 bit. My guess would be that safari is using ColorSync to match the jpg to what it would like in print, which would be fine if you weren't trying to match it the gif next-door. You might have to use one format or the other (or switch both to png, which is lossless but can still display 32 bit images). Quoting Hill, Tim [EMAIL PROTECTED]: Could it be because of the colour depth on the mac? Jpeg makes an approximation of the colours used (like in the original file) for better optimisation. So on the PC its using a different colour depth and the jpeg appears okay but on the mac it has a more limited depth so it doesnt? Pencil tool and cross hatch like a mofo =) Tim Hill Computer Associates Graphic Artist tel: +612 9937 0792 fax: +612 9937 0546 [EMAIL PROTECTED] -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Cameron Adams Sent: Thursday, 16 September 2004 2:32 PM To: [EMAIL PROTECTED] Subject: [WSG] Mac (Safari) rendering of colours Hi, I was wondering whether anyone knew why on my site: http://www.themaninblue.com/ a Mac using a display of millions of colours (in Safari) renders the images in the main grey panel differently, thus creating a visible line on either side of the content. Whereas on PC it is seamless. I'm guessing it arises because I use a JPEG for the main middle part, and GIFs for the two sides (or vice versa) and the computer is rendering the colours differently? But on a PC machine it's all fine and no discrepancies can be seen. This also happens on another site I'm developing, where the CSS background-color differs from the JPEG background image on Mac, but looks fine on PC. If anyone knows a solution it would be much appreciated. -- Cameron Adams W: www.themaninblue.com ___ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help ** ** The discussion list for http://webstandardsgroup.org/ Proud presenters of Web Essentials 04 http://we04.com/ Web standards, accessibility, inspiration, knowledge To be held in Sydney, September 30 and October 1, 2004 See http://webstandardsgroup.org/mail/guidelines.cfm for some hints on posting to the list getting help **
