On Fri, 21 Jun 2013 23:33:19 -0500 Doug Newgard <[email protected]> said:
> > Date: Sat, 22 Jun 2013 13:20:33 +0900 > > From: [email protected] > > To: [email protected] > > CC: [email protected] > > Subject: Re: [E-devel] Enlightenment pngs with embedded iCC profiles > > > > On Sat, 22 Jun 2013 14:12:44 +1000 David Seikel <[email protected]> said: > > > >> On Fri, 21 Jun 2013 22:39:19 -0500 Doug Newgard <[email protected]> > >> wrote: > >> > >>> ---------------------------------------- > >>>> Date: Sat, 22 Jun 2013 10:44:15 +0900 > >>>> From: [email protected] > >>>> To: [email protected] > >>>> CC: [email protected] > >>>> Subject: Re: [E-devel] Enlightenment pngs with embedded iCC profiles > >>>> > >>>> On Fri, 21 Jun 2013 16:15:47 -0500 Doug Newgard > >>>> <[email protected]> said: > >>>> > >>>>> I'm sure some of you have seen the warnings generated by libpng > >>>>> 1.6: "known incorrect sRGB profile". Now, this is no big deal, > >>>>> it's just a warning, but I still wanted to look into it further. > >>>>> By my count, there are 800 png files in Enlightenment, of which > >>>>> only 6 have embedded iCC profiles, all from HP. The rest are sRGB > >>>>> colorspace, but do not include a profile. There are some good > >>>>> arguments for this (http://imageoptim.com/color-profiles.html > >>>>> http://www.gballard.net/psd/save_for_web_embed_ICC_profile.html) > >>>>> and since this seems to be the default, I've attached the 6 files > >>>>> with the profiles stripped out. As you can see, it doesn't change > >>>>> the image or the colorspace, it just leaves the calibration up to > >>>>> the end user's system. > >>>>> > >>>>> I haven't been able to find just what's wrong with the HP iCC > >>>>> profile being used that the authors of libpng don't like, but it > >>>>> makes sense to standardize the way profiles are handled anyway. > >>>>> And it has the nice side effect of silencing warnings, even if the > >>>>> Debian/Ubuntu users aren't likely to see them for a couple of > >>>>> years. > >>>>> > >>>>> I can just change the iCC profile instead if you would prefer. > >>>>> I've seen multiple people recommend the Argyll sRGB profile, which > >>>>> is still "sRGB IEC61966-2.1" and is public domain. > >>>>> > >>>>> Elementary has a lot more pngs with the HP profile, so once I know > >>>>> for sure what people would prefer, I'll fix them, too. > >>>>> > >>>>> Doug > >>>> > >>>> what we need to know is what is adding the hp profile causing the > >>>> warinig. what tool does it? is it gimp? photoshop? imagemagick? > >>>> otherwise we go creating warnings again if that tool is used... > >>> > >>> That's a good question. On my machine, GIMP refuses to even export > >>> the image with the HP profile, so I doubt that's it unless that's > >>> because of libpng 1.6. I do know that the HP profile is not included > >>> with GIMP, only their built-in profile which is used for display, it > >>> does not get embedded into images. I did find some information about > >>> the HP profile in relation to Photoshop, but others said that it > >>> didn't come with Photoshop and suggested it may have been included > >>> with printer/scanner software. I did find that Photoshop does not > >>> embed a profile by default when exporting PNGs. As far as I can tell, > >>> Imagemagick doesn't include any iCC profiles, so that can't be it, > >>> either. On my system, I have profiles from Colord, Argyll, Oyranos, > >>> and Yamma, and none of them include the problem profile. Where this > >>> profile came from is sitll a bit of a mystery to me. > >> > >> Look at the SVN / git history for the images with that HP profile. > >> That at least will tell you WHO added them. Than ask that person > >> what they used to make them / last used to massage them / where they got > >> them from. > > > > given the images... one i know i created years ago with gimp. others i think > > came from manowarrior (he did his work with inskacpe and/or photoshop and > > illustrator?) > > Yep, git blame on the icons, at least, gives me d6dab499 and f72b2067. The > former says icons from manowarrior, the second is optimizing the images. The > iCC profile seems to be in the originals from manowarrior. Loading them up in > a hex editor, I see a string that says "iCCPPhotoshop ICC profile", so this > does seem to be originally from Photoshop. I wonder if they're still using it > or if it was only in an older version? so... photoshop blame! :) > > > > -- > > ------------- Codito, ergo sum - "I code, therefore I am" -------------- > > The Rasterman (Carsten Haitzler) [email protected] > > > > > > ------------------------------------------------------------------------------ > > This SF.net email is sponsored by Windows: > > > > Build for Windows Store. > > > > http://p.sf.net/sfu/windows-dev2dev > > _______________________________________________ > > enlightenment-devel mailing list > > [email protected] > > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > _______________________________________________ > enlightenment-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/enlightenment-devel > -- ------------- Codito, ergo sum - "I code, therefore I am" -------------- The Rasterman (Carsten Haitzler) [email protected] ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ enlightenment-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/enlightenment-devel
