Mike Chaney's Tech Corner

Mike's Software => Qimage Ultimate => Topic started by: sync007 on July 16, 2022, 10:34:38 PM



Title: Color Problems
Post by: sync007 on July 16, 2022, 10:34:38 PM
I use Capture One for my workflow. I received some photos in JPG from someone who embedded the sRGB color space. I have 2 EIZO monitors both calibrated and the same model and settings. I use these monitors with Capture One. The first monitor shows it reddish while the second monitor shows it properly. In Qimage you also show it properly but on my Canon P2100 large format printer it prints out reddish like the srgb_mon1.jpg file

I cannot figure this out ??? ??? ???


Title: Re: Color Problems
Post by: Fred A on July 17, 2022, 07:42:34 AM
I will try to help.
First of all the monitor, has nothing to do with the print; UNLESS, you filtered it lighter or darker or added color intensity or contrast because of what you saw on the monitor.
Let us assume you did not do any of that in Qimage, but merely placed the two images in the queue.
The necessary driver settings are criical though. You must have the proper selected paper chosen and the correct printer profile for that paper.
Also equally necessary is the setting in the driver to OFF for color management. See screen snap 103
The settings in Qimage should look like See screen snap 104. Note the matching paper selection and matching printer profile.
The other color change can be caused by different color space used for each image.
See snap 105. Same image two different color spaces.
Hover your mouse over each thumbnail and read the colorspace in the hot bar at the bottom of Qimage.
Hope this helps.
Bear in mind that before you print, you can unplug your monitor and plug in some old worn out cheap one, and it will not change the print at all.
Fred


Title: Re: Color Problems
Post by: CHoffman on July 18, 2022, 01:30:19 PM
I see mon1 as maybe reddish, but more correct and pleasing. Mon2 seems to have a subtle greenish cast. As said, if the printer is properly profiled for the paper and working correctly, it's the reference. The monitor should be adjusted to match the printer, not the other way 'round.


Title: Re: Color Problems
Post by: Fred A on July 18, 2022, 01:47:04 PM
Quote
The monitor should be adjusted to match the printer, not the other way 'round.

Thank you, Thank you!
I have been saying that for years.
Fred


Title: Re: Color Problems
Post by: JustGeorge on July 19, 2022, 04:32:21 AM
...The monitor should be adjusted to match the printer, not the other way 'round.

FWIW, Ctein, a highly respected Master Print Maker (in some circles anyway) espouses this as well.

I've used this "profile"  ;) with my HP notebook (6yo), works for matching screen to print and doesn't seem to interfere with any other images I'm viewing online. 


Title: Re: Color Problems
Post by: CHoffman on July 19, 2022, 11:47:22 AM
OT, but his wet process book Post Exposure is excellent if you do that sort of thing, plus his books on digital restoration of photos are as good as they come. Big fan of the man.