Using XYZ is more flexible concerning about converting to other color spaces than direct (between sRGB and Adobe RGB) conversion.Ĭonversion between sRGB and XYZ contains non-linear operation. even though the color values themselves may change. (mainly if out of range, but in some settings, not out of range values also be affected)Īims to preserve the visual relationship between colors. It's a little complicated ones, so please read spec sheets if you need formulas.įor testing, check color conversion settings. As I come up with refinements I'll edit them into the answer. I'm not 100% happy with the accuracy of these functions, but it should get you in the ballpark. As noted in the comments, you convert from one color space to XYZ (normalized) then from XYZ to the new color space. sRGB is still the most common, but it is getting more confusing as more people get wide gamut monitors.Here is Python code to implement the formulas. Once everyone started using different gamut monitors, without color managed applications, there ceased to be one right answer. If you exported it as AdobeRGB it might be closer for you, but someone else (many if not most other people on the web) would see it incorrectly. The issue is the wide gamut monitor and other applications not how Lightroom created the image. To work correctly for you, you should identify programs for use that are color managed, and try to stick to them. all be color managed) and then each can speak any language and they can still understand. The alternative is to have all the people have a translator (i.e. This is normal behavior with non-color managed applications, and is one reason so much work for the web is done in sRGB - most people (at least originally) did not have color managed browsers, and also had roughly sRGB monitors, so it just worked, kind of like having all the people in the room speak English (or French or whatever). Photoshop is smart, so images should appear fine there. in your example, firefox is a color managed browser, so it is smart enough to see the sRGB profile and convert it to AdobeRGB (or more precisely to the profile of your monitor which is close to AdobeRGB). Your issue is that some applications are color managed, and some not. I have to admit, I only learned this myself quite recently being an old hand at Photoshop, but a newbie at actual photography. Your Export settings look fine - the error was earlier in the workflow. This ensures that the profile embedded in the original photograph remains the single source from which all modifications are made & you don't keep unnecessarily recalculating to different gamuts.Īt Export is the only time you should replace that profile - this also preserves the original profile in the master copy untouched. You should always check that the correct monitor profile is in the drop-list for that tab, but you should select your actual intended gamut there - AdobeRGB for 'high colour' or sRGB for web.Ĭolour Management should be set to Preserve embedded profiles. The monitor profile is actually adapted "live" as it's drawn to screen & should not be part of your workflow. I think the main error is that your Working Space is set to your monitor profile.
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