On Fri, 21 Jun 2013 22:39:19 -0500 Doug Newgard <[email protected]> said:
> ---------------------------------------- > > 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. well we can fix it - sure... but finding the problem source should be done. :) looks like it needs more hunting? -- ------------- 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
