When checked,
assigns a GIMP built-in sRGB color space to your image.Also, if you've selected to display the image's assigned ICC color profile in the window title (which is the default) or status bar (see Image Title & Statusbar Format preferences), checking will show «GIMP built-in sRGB» in the title or status bar in place of the image's assigned color profile.
Примечание | |
---|---|
For images without color profile, or that have a sRGB profile is disabled and checked by default. For images that have a different color profile this option will be enabled and unchecked. It's best to leave it that way unless you know what you are doing. |
The best possible advice is to never check when you are using a different color profile.
When you check the option to
, GIMP does two things:Whatever ICC profile is currently assigned to the image, is stored (pending subsequent editing, Encoding, and Color Management actions), but isn't used. And then a built-in GIMP sRGB profile is assigned in place of the previously assigned ICC profile:
If the image is in Non-linear encoding, the ICC profile "GIMP built-in sRGB" is assigned.
If the image is in Linear light encoding, the ICC profile "GIMP built-in Linear sRGB" is assigned.
You can confirm that one of GIMP's built-in sRGB color spaces has been assigned by selecting Color Profile.
→ and checking theПримечание | |
---|---|
Assigning a new profile to an image doesn't change the image's actual channel values. Assigning a new ICC profile only changes the meaning of these values, which means the image appearance will change (unless the original and new profile are functionally equivalent). |
When
is checked, one of GIMP's built-in sRGB profiles is assigned to the image. Assigning a new ICC profile to an image doesn't change the image's channel values, but it does more or less drastically change the image's appearance:Если изображению уже было присвоено одно из встроенных цветовых пространств GIMP (или присвоенный профиль ICC функционально аналогичен присвоенному встроенному профилю sRGB), то визуальные характеристики изображения не изменятся.
Если изображению не было присвоено одно из встроенных цветовых пространств GIMP (или присвоенный профиль ICC не является функционально аналогичным присвоенному встроенному профилю sRGB), то визуальные характеристики изображения более или менее серьёзно изменятся, в зависимости от трёх факторов:
What GIMP channel encoding — Linear light or Non-linear — the image was in before the box was checked.
How far the image's originally assigned ICC profile's channel encoding ("TRC") is from the GIMP channel encoding.
Насколько сильно отличается хроматичность красного, зелёного и синего цветов изначально присвоенного изображению профиля ICC от хроматичности встроенного профиля sRGB GIMP.
The image is color managed: An ICC profile is assigned to the image, and that profile is being used to send the image colors to the screen. After checking
, one of GIMP's built-in sRGB profiles has been incorrectly assigned to the image, so the colors look wrong.In the screenshot below, the channel encoding of the original profile matches the GIMP channel encoding (both are linear), but the «LargeRGB-elle-V4-g10.icc» profile chromaticities don't match the GIMP built-in sRGB chromaticities. So after checking , the tonality is correct but the colors are wrong. The image is still color managed, but it's color managed using the wrong ICC profile:
Внимание | |
---|---|
If your image's originally assigned ICC profile doesn't have the same channel encoding and chromaticities as the GIMP built-in sRGB profile, and you check and then immediately change your mind and uncheck , the originally assigned ICC profile will be reassigned to your image and your image channel values will be unchanged.Otherwise, whether or not you can recover the originally assigned ICC profile and correct colors for your image depends on what else you've done between the checking and unchecking of .Again, the best possible advice is to never check . |