gdanmitchell
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 p.3 #17 · Color discrepancies from Lightroom to Flickr, Imgur, Windows Photos, firefox, and chrome/brave browsers. | |
ruthenium wrote:
Dan, when you print, do you send sRGB images to the printer?
Not sure how that is relevant to my share, but here goes:
I use ACR to initially process raw images, which I export as 16 bit smart objects to Photoshop using ProPhoto.
I do additional work in Photoshop with the file in the ProPhoto color space and save the master files as .psd.
The ProPhoto color space is larger than Adobe RGB, P3, and others so I let Photoshop warn me if colors are out of gamut for my printer.
I print flattened, resized, and custom sharped files from Photoshop to my Epson P9000, with Photoshop managing colors and using custom profiles for the various print media I use.
For web images, I flatten, resize, custom sharpen for the web, convert to 8-bit sRGB jpg files.
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ruthenium wrote:
This means that the images do not correctly illustrate the Cobalt Kodachrome profile (1987 version) colors.
These colors must be more deep and vibrant than seen in the examples posted by Fred.
When good quality color reproduction is needed, this is when using a small/narrow color space is inappropriate.
sRGB is "good enough" for many uses and most users.
There is a difference, however, between good and good enough.
I shared that link after seeing the claims that using sRGB for web files would produce flatter images without sufficient saturation.
p3 (along with others) is a somewhat larger color space — no one denies that. The issue, for the time being, remains the same one we've long dealt with, namely the size of the color space (larger is good versus consistent rendering on the web (consistency is good!).
Clearly, there is a transition toward P3, and once that transition is complete it will unarguably make sense to use that color space for images destined for web and similar electronic displays. I think it is already a viable working color space in Photoshop if you are willing to work with its smaller than ProPhoto color space, which is very reasonable when your intended output is web images and not print.
One of the tricky things about color "science" (which is the right term here, unlike the wwhatay we see it in a lot of camera discussions) is that it is extremely complicated under the hood. Mapping print color to screen color is really messy. there are plenty of ways for display to go wrong. In particular, we can't assume that images will be seen on displays that are properly profiled or viewed in the right ambient light. Even with the old standby sRGB things don't always turn out as they should. (I have an image that I use for a header on social media sites which, when displayed as a header, renders the colors differently that when I post it in a message on those sites!)
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