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?) -- ------------- 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
