Since updating to a wide gamut monitor, I am having an issue with color management that I would like to see if any else with a similar situation is also having or has seen.

I use a PC running Windows 10.

I have been using QImage for quite some time, since before Ultimate, currently running the latest version.

I use ACDsee Ultimate as my DAM and process my images with Adobe Camera Raw in 16 bit ProPhoto RGB, finalize in Photoshop CS6, and save as PSD files with ProPhoto as embedded profile.

Until upgrading to wide gamut monitor,NEC PA272 calibrated with SpectraView and results saved to internal LUT's, any processed image (PSD file) opened in QImage would match between ACDsee and Photoshop with my single sRGB monitor. Since upgrading to new wide gamut monitor images opened in QImage have a green color bias as compared to the image being viewed in ACDsee or Photoshop.

Since the NEC calibration is saved to internal LUT's of the monitor a profile is NOT assigned to the monitor in Windows. This configuration works great for ACDsee and Photoshop, both color managed applications. Although a monitor profile is created during the SpectraView calibration for use if an application has need of it.

The first time I opened a processed PSD file in QImage after getting the NEC monitor up and running this green bias was noticeable as compared to ACDsee and Photoshop.

To troubleshoot this issue I have done the following:

1) Assign the NEC monitor profile in Windows. No change in behavior of QImage but this does cause ACDsee and Photoshop to display images with a similar green bias as it causes them to double profile.
2) Assign the NEC monitor profile in QImage via the Color Management settings in Preferences. No change in QImage behavior. In fact I have tried setting various profiles in QImage Color Management settings and the image display NEVER changes, it is almost as though QImage is not applying any monitor profile I assign. I would expect the image displayed to change in some way as I have selected some profiles that should be way off.

Anyone see anything similar or can point to me to something I am doing wrong in setting up color management in QImage?

Thanks,

Roy

Hi Fred,

Thanks for answering. You are right on, rebuild thumbs took care of the problem. All my other color managed apps update immediately after making any changes to their color management settings so I just assumed QImage would be the same. After enabling color management and setting the proper monitor profile, then selecting Rebuild Thumbs the displayed image in QImage matches my other apps.

Thanks for pointing me in the right direction, I thought it must be something simple in QImage.

Take Care,

Roy