While using “Standard Output” (JPEG Quality 100%) under “Export to disk”, and selecting the option Adobe RGB (1998) as the ICC profile with a tick in the preserve colour details box, I note that the properties of the exported JPG file say that the colour is “uncalibrated”.
It is as though the ICC profile is not being embedded in the output JPEG.
Am I missing something here, please?
I did not think I needed to really consider this, but recent printing of a Photobook via a well-known online service ended up with dull, foggy shades of purple (only) in the prints, relative to what I could see on screen. This usually points to a colour space problem and this is why I was trying to embed AdobeRGB into my export prints.
Additionally, when I reimport the exported JPG (into PL) the histogram is not identical to the pre-export version either. I have adjusted the Tone Curve settings in the pre-export version the to ensure there is no clipping at either extreme of the histogram and, yet, there is clipping evident in the exported version.
I am baffled, to say the least and any help would be appreciated…
To date, my experience of setting the ICC profile in the export to disk dialog has been:
If I set the ICC profile to ‘as shot’ (for me that would be sRGB) or I explicitly set to ‘sRGB…’ then PL does not embed the ICC profile.
If I set the ICC profile to ‘Adobe RGB’ then PL does embed the profile.
This behaviour, i.e. the failure of PL to embed an sRGB profile vs it properly embedding an Adobe RGB profile is been mentioned on numerous occasions in the forum.
Did you check that the print service you used accepts images with an Adobe RGB profile? If not, that mismatch would account for the dull prints you received.
PhotoLab is not failing to embed the sRGB profile!
This is normal behavior: it’s neither useful nor necessary for this profile to be embedded. This has been explained several times here.
Excerpt from one of my posts on another thread:
In the case of an sRGB export as shown in your screenshot, PhotoLab does not embed any profile. It simply indicates in the metadata that the ColorSpace value (Tag-ID A001) is “calibrated.” Depending on the software reading the metadata, this may be translated as ColorSpace “1,” Calibrated, or sRGB: they are identical: this corresponds to the sRGB IEC61966-2.1 profile. Note the date contained in the profile name: 1966.
In the case of an export with a profile other than sRGB, the ColorSpace value is “uncalibrated.” It is necessary to embed the profile. This is reflected in the metadata by two sections: ICC-Header and ICC_Profile, which describe the profile’s characteristics. For example, Adobe RGB (1998). You can verify this in the ALL metadata of ExifTool or any other similar Exif reader. These sections obviously don’t exist when exporting to sRGB.
OK, I shouldn’t have used the word ‘failure’, when I summarised my two points. I should have said something like, "This behaviour, i.e. the fact that PL only indicates via metadata that an image using a sRGB profile vs it properly embedding an Adobe RGB profile is been mentioned on numerous occasions in the forum.