How do I embed sRGB into Exports? |
Nov 23, 2012, 12:58
(This post was last modified: Nov 23, 2012 13:51 by sugarkane.)
Post: #1
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How do I embed sRGB into Exports?
Hi.
As a bit of good housekeeping while struggling with an .icc problem I upgraded from Gimp 2.6 to (as of yesterday) the latest 2.8. Now when I export my work into a .jpg or .tif the sRGB embedding that used to be automatic no longer takes place. I can tell by going onto my Windows hard-drive, finding the exported file (e.g. XYZ.jpg), right-clicking on; "Properties" >>> "Details" >>> "Image" >>> "Colour Representation". It should have "sRGB" on this line but is now blank - indicating that the embedding to the file did not occur in the Export from Gimp. This must be simple to correct - it was previously working without my knowledge - but it's got me head-scratching and hamstrung until I can fix it. Help much appreciated. ______________________________________________________________________ Update - Since posting I've experimented with different files and it seems that if sRGB is embedded by the manufaturer's software - in my case I shoot RAW files and open in Canon's DPP to view and convert to .tif to edit in Gimp - it will be retained by Gimp all through its Import and Export processes. Anyone who knows more than I - I'd appreciate a confirmation that this last paragraph is correct. I seem to be okay going forward. I think. But ... for whatever mysterious reasons this normality has been interrupted earlier and I need to go back to some Gimp files and re-Export with sRGB now embedded. So my issue questions remain open and help is still appreciated. |
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Nov 23, 2012, 13:44
Post: #2
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RE: How do I embed sRGB into Exports?
I had to fire up a winXP VM since my linux Gimp probably has too much in the way of 'history'
and I never got round to right clicking on the files for their properties in windows. Too late now, I am heading out. They are there in Gimp properties however. Probably a windoze thing A couple of screenshots for info. http://i.imgur.com/ACnmS.jpg ** https://www.gimp-forum.net/ now answering questions** |
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Nov 23, 2012, 13:56
(This post was last modified: Nov 23, 2012 13:57 by sugarkane.)
Post: #3
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RE: How do I embed sRGB into Exports?
Thanks - just the screen shot you have posted explains the Image Properties window (new to me) and its use so that I can confirm my Preferences are set correctly going forward. Getting the same on my (current, not previous) Gimp files as on your grab.
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Nov 23, 2012, 16:22
Post: #4
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RE: How do I embed sRGB into Exports?
To satisfy my curiosity. When I import the pics from my camera they are srgb..when I export from gimp they are not. They print good and look good in all respects. Would I really need to change anything. Rich2005 I couldn't make out the lettering on your image or find it in tools???Thanks for putting up with this old fart.
you only learn if you try Denster
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Nov 23, 2012, 16:24
Post: #5
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RE: How do I embed sRGB into Exports?
To satisfy my curiosity. When I import the pics from my camera they are srgb..when I export from gimp they are not. They print good and look good in all respects. Would I really need to change anything. Rich2005 I couldn't make out the lettering on your image or find it in tools???Thanks for putting up with this old fart.
you only learn if you try Denster
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Nov 23, 2012, 18:23
Post: #6
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RE: How do I embed sRGB into Exports?
@ denster
In that screenshot, the Gimp colour management settings are in the Edit -> Preferences -> Color Management menu and the image properties come from the Image -> Image Properties menu. If you get good results with your prints, I would not worry too much about it. @ sugarkane I could not get "Properties" >>> "Details" >>> "Image" >>> "Colour Representation" from a right click in WinXP So I checked using Imagemagick identify -verbose 'image.ext' as being independant of GIMP and that showed sRGB in the properties. So fairly confident that the default sRGB is being used. ** https://www.gimp-forum.net/ now answering questions** |
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Nov 25, 2012, 18:36
Post: #7
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RE: How do I embed sRGB into Exports?
I can confirm that I am having the same problem. Unfortunately, my lab refuses to process photos unless they have a color profile embedded in them.
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Nov 25, 2012, 19:57
Post: #8
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RE: How do I embed sRGB into Exports?
As before you need to determine which profile is acceptable to your printer, ten-to-one it is a CMYK profile.
You can get a few RGB and CMYK profiles from Adobe (must be one of the few things they do not charge for) http://www.adobe.com/support/downloads/d...ftpID=3680 and there is a range of CMYK profiles here: http://www.color.org/chardata/drsection1.xalter While it is possible to fiddle a profile in Gimp, ImageMagick is a much better tool. The command convert somefile.jpg -colorspace sRGB -profile 'rgbprofile.icc' newfile.jpg (should work) and the similar for CMYK convert somefile.jpg -colorspace CMYK -profile 'cmykprofile.icc' newfile.jpg If command lines beat you, there are also (free) online conversion services http://www.rgb2cmyk.org/ and back again http://www.cmyk2rgb.com/ while there look at the 'about' section - some good advice. ** https://www.gimp-forum.net/ now answering questions** |
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