[Gimp-user] PNG files and IE6
Hi all, I downloaded a few little icons in PNG format which have transparent backgrounds and they display fine in IE6. I then created a spacer image (in Gimp) consisting solely of a transparent background but it is rendered as a solid colour (light grey) in IE6. Can anyone explain what it is you have to do to PNG files which include transparency to please the behemoth? It works fine in WebKit and Gecko based browsers. Thanks, Sebastian -- Emacs' AlsaPlayer - Music Without Jolts Lightweight, full-featured and mindful of your idyllic happiness. http://home.gna.org/eap ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
Quoth Frank Gore g...@friendlyphotozone.com: There's more to it than just the PNG format, and this isn't really a Gimp thing: http://homepage.ntlworld.com/bobosola/ Many thanks to all respondents. It turns out there are two kinds of transparency; binary alpha channel. IE6 can handle binary but not alpha channel. Something I read next (I forget what/where it was now) made a link between 'binary' and 'indexed' (neither term really meaning anything to me) so I used Gimp to creat a new image, chose to fill it with a transparent background and then switched to Indexed mode (as opposed to RGB or Greyscale) before exporting to PNG, and it worked! So, in short, if you want your transparent PNGs to work in IE6, switch to indexed mode before you export... it really does seem to be as simple as that. Sebastian ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
On 05/27/2010 12:51 PM, Sebastian Tennant wrote: Quoth Frank Gore g...@friendlyphotozone.com: There's more to it than just the PNG format, and this isn't really a Gimp thing: http://homepage.ntlworld.com/bobosola/ Many thanks to all respondents. It turns out there are two kinds of transparency; binary alpha channel. IE6 can handle binary but not alpha channel. Something I read next (I forget what/where it was now) made a link between 'binary' and 'indexed' (neither term really meaning anything to me) so I used Gimp to creat a new image, chose to fill it with a transparent background and then switched to Indexed mode (as opposed to RGB or Greyscale) before exporting to PNG, and it worked! So, in short, if you want your transparent PNGs to work in IE6, switch to indexed mode before you export... it really does seem to be as simple as that. Sebastian Can't doing this result in some loss of image quality? Sometimes I'll make PNGs with a drop shadow and transparency and when I convert the image to indexed mode, the drop shadow quality suffers. Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
On 05/27/2010 01:47 PM, Stefan Maerz wrote: On 5/27/2010 3:38 PM, Tom Williams wrote: Can't doing this result in some loss of image quality? Sometimes I'll make PNGs with a drop shadow and transparency and when I convert the image to indexed mode, the drop shadow quality suffers. Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user If I am not mistaken, binary transparency does not support partial transparency, so drop shadow quality should suffer. Stefan Maerz Thanks for the info! :) Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
On 05/27/2010 02:00 PM, niski wrote: W dniu 2010-05-27 22:38, Tom Williams pisze: On 05/27/2010 12:51 PM, Sebastian Tennant wrote: Quoth Frank Goreg...@friendlyphotozone.com: There's more to it than just the PNG format, and this isn't really a Gimp thing: http://homepage.ntlworld.com/bobosola/ Many thanks to all respondents. It turns out there are two kinds of transparency; binary alpha channel. IE6 can handle binary but not alpha channel. Something I read next (I forget what/where it was now) made a link between 'binary' and 'indexed' (neither term really meaning anything to me) so I used Gimp to creat a new image, chose to fill it with a transparent background and then switched to Indexed mode (as opposed to RGB or Greyscale) before exporting to PNG, and it worked! So, in short, if you want your transparent PNGs to work in IE6, switch to indexed mode before you export... it really does seem to be as simple as that. Sebastian Can't doing this result in some loss of image quality? Sometimes I'll make PNGs with a drop shadow and transparency and when I convert the image to indexed mode, the drop shadow quality suffers. Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user Opacity in indexed mode is binary like in GIFs (that is, any pixel is either opaque or transparent but not e.g half-transparent)... If you really need to have PNGs with indexed opacity in IE6, you have IE6 filters (they are written in CSS files) at your disposal. If you know you won't have any gradients or anything like that under the shadow, you can just cut small part with background and shadow over it. Best regards, niski Thanks for the info! :) Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
On 05/27/2010 03:03 PM, Branko Vukelic wrote: On Thu, May 27, 2010 at 10:38 PM, Tom Williams tomd...@comcast.net wrote: Can't doing this result in some loss of image quality? Sometimes I'll make PNGs with a drop shadow and transparency and when I convert the image to indexed mode, the drop shadow quality suffers. There are ways to do this correctly and keep the image visually similar to the original 24-bit PNG (the one with alpha). You must know the color of the background on which you'll be putting the 8-bit PNG (binary transparency) before you can do so, though. Once you know the background color: 1. Create a layer filled with background color 2. Put the layer behind the image with drop shadow 3. Flatten the image and add alpha to the only remaining layer 4. Use select by color tool and click somewhere where background shows though 5. Clear the selection (delete it) 6. Now save the result as 8-bit PNG and it should work (Of course, it'll be clearer when you actually do these steps.) HTH Thanks for the info! :) Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
On 05/27/2010 02:56 PM, Frank Gore wrote: On Thu, May 27, 2010 at 4:38 PM, Tom Williams tomd...@comcast.net wrote: Can't doing this result in some loss of image quality? Sometimes I'll make PNGs with a drop shadow and transparency and when I convert the image to indexed mode, the drop shadow quality suffers. The problem with indexed colour is that the PNG format is still technically limited to 8bit in its colour palette in this mode, just like GIF was. So yes, you can lose tons of quality and colour. Thing is, IE6 is pretty much deprecated at this point anyways. Most new templates for things like Joomla, Drupal et al do not include full support for IE6 anymore. Now if only people would stop installing old versions of Windows XP, we'd all be better for it :) Thanks! Peace... Tom ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] PNG files and IE6
On Fri, May 28, 2010 at 12:19 AM, Tom Williams tomd...@comcast.net wrote: Thanks for the info! :) Tom, there's no need to spam the list with thanks (as far as I'm concerned), and quote whole messages just to say Thanks. ;) -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
[Gimp-user] Listequette
May I offer a respectful and kind suggestion to all? When replying to a message, please cut as much of the original message is not relevant to your reply. This is especially true when saying thank you - so readers don't have to page down through several messages just to see a very brief message. Interweb Listequette suggest that quoted material shoule be no more than 20% of the new material. Like all rules there will be many good reasons for exceptions, but you get the idea. Thanks. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Listequette
Hi, Steve, Question on the subject of listequette: Gmail defaults to top-posting in replies. But I think I've heard that it's considered rude. On this list, is it preferred to ignore Gmail's default and put my reply after the previous person's message? Thanks On Thu, May 27, 2010 at 7:03 PM, Steve VanSlyck s.vansl...@spamcop.net wrote: May I offer a respectful and kind suggestion to all? When replying to a message, please cut as much of the original message is not relevant to your reply. This is especially true when saying thank you - so readers don't have to page down through several messages just to see a very brief message. Interweb Listequette suggest that quoted material shoule be no more than 20% of the new material. Like all rules there will be many good reasons for exceptions, but you get the idea. Thanks. ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Listequette
On Fri, May 28, 2010 at 2:03 AM, Steve VanSlyck s.vansl...@spamcop.net wrote: May I offer a respectful and kind suggestion to all? When replying to a message, please cut as much of the original message is not relevant to your reply. This is especially true when saying thank you - so readers don't have to page down through several messages just to see a very brief message. Users wouldn't need to scroll down if the simple messages like Thank you were top-posted. So, another suggestion is: ALWAYS top-post messages that are not replies to any particular part of the original e-mail, and optionally (and preferably) also snip the original message short. Sounds OK? Regards, -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Listequette
* Branko Vukelic bg.bra...@gmail.com [05-27-10 20:58]: On Fri, May 28, 2010 at 2:03 AM, Steve VanSlyck s.vansl...@spamcop.net wrote: May I offer a respectful and kind suggestion to all? When replying to a message, please cut as much of the original message is not relevant to your reply. This is especially true when saying thank you - so readers don't have to page down through several messages just to see a very brief message. Good suggestion. Users wouldn't need to scroll down if the simple messages like Thank you were top-posted. If the msg were trimmed, there would be no need for top posting. So, another suggestion is: ALWAYS top-post messages that are not replies to any particular part of the original e-mail, and optionally (and preferably) also snip the original message short. Sounds OK? No, trim your quotes and post answers or points immediately following the pertinent quote. Top posting should never be necessary. -- Patrick Shanahan Plainfield, Indiana, USAHOG # US1244711 http://wahoo.no-ip.org Photo Album: http://wahoo.no-ip.org/gallery2 Registered Linux User #207535@ http://counter.li.org ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Listequette
On Fri, May 28, 2010 at 3:03 AM, Frank Gore g...@friendlyphotozone.com wrote: I think guidelines and common sense are probably more useful for listequette than hard and fast rules that will always get broken. No harm in mentioning them, methinks. It's not some hard-to-remember rule that's even harder not to break, too. Regards, -- Branko Vukelić bg.bra...@gmail.com stu...@brankovukelic.com Check out my blog: http://www.brankovukelic.com/ Check out my portfolio: http://www.flickr.com/photos/foxbunny/ Registered Linux user #438078 (http://counter.li.org/) I hang out on identi.ca: http://identi.ca/foxbunny ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
Re: [Gimp-user] Listequette
Von: Branko Vukelic bg.bra...@gmail.com Users wouldn't need to scroll down if the simple messages like Thank you were top-posted. They won't have to scroll down if you trim the post you're replying to to the one essential phrase or paragraph, either. Or, if that's not possible in your opinion, you can summarize that post in a single line using your own words, put that in square brackets and add your Thanks below, e.g. [helpful comments about $aspect of $topic] Thanks! HTH, Michael -- GRATIS für alle GMX-Mitglieder: Die maxdome Movie-FLAT! Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome01 ___ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
