Colour management

[Redshift]

Hello,

I'm trying to set up colour management for PixInsight. When I process the image in PixInsight and then open it in Photoshop, Photoshop does not recognise the embedded ICC profile from PixInsight and changes it. Consequently the image does not look like the one I processed in PixInsight. At the present moment I processing greyscale images (Ha).

In colour management PixInsight has selected the monitor ICC displays as the working profiles.  

How can I get Photoshop to display the image in exactly the same way as in PixInsight?  

Thanks and regards
Dave

I'm now beginning to think this may be a bug. In the colour management box, under the selections, Monitor Profiles, RGB, Greyscale and Proof Profile they are drop down selection menus, which list the ICC profiles. I have four ICCs to select from, 3 of them are monitor profiles and 1 is web safe colours. That's all I've got. Shouldn't I be able to select Adobe 1968 etc?

Or have I got it totally wrong. I'm using a Mac the 64 bit version.
Dave

[Juan Conejero]

Hi Dave,

On the Mac, the standard color profile folders are the following:

Global Profiles folder:
/Library/ColorSync/Profiles

User Profiles folder:
~/Library/ColorSync/Profiles

Network Profiles folder:
/Network/Library/ColorSync/Profiles

PixInsight will automatically detect and use all valid ICC profiles on these folders. So if you have profiles in other locations, you just have to copy them to one of the standard locations (better use your user profiles folder; otherwise you'll need root privileges to write to other directories) and PixInsight will detect them the next time you launch the PI Core application.

Other applications may let you work with profiles in arbitrary folders, but regarding color management, PixInsight always tries to adhere to reasonable standards on each platform.

Photoshop does not recognise the embedded ICC profile from PixInsight

Can you be more specific? Which file format and which particular ICC profile are giving you problems with that application?

If the image is in the grayscale color space, take into account that PixInsight is able to use RGB profiles with grayscale images (the grayscale space is a subset of the RGB space where R=G=B). This is a nonstandard PI feature that other applications normally don't support.

[Redshift]

Hi Juan,

Thank you for your reply.
I've now copied the colour profiles to the User folder and PixInsight has detected them. Everything is now working.

Regarding Adobe Photoshop not recognising the embedded profile. As I was working with the colour management dialogue box in my own attempts to solve the problem, I embedded the ICC monitor profile into an image. I then opened it in Photoshop and it was that profile it couldn't recognise.

Again thank you for your help, my problem is solved. 

Dave