ASP Working Color Space

[mechir]

Hi, i have a question regarding color management. Do ASP still using ProPhoto RGB as the working color space?

[afx]

Linear ProPhotoRGB

cheers
afx

[mechir]

Thank you. Now i need to find out if Paint Shop Pro use ProPhoto RGB as working color space.

[claudermilk]

You can set it to.

[mechir]

Linear ProPhotoRGB

cheers
afx

Thank for the clarification.

You can set it to.

I found the setting but no ProPhoto RGB in the list. Perhaps i have to install a profile in my OS or just copy ASP file to PSP.

[afx]

I found the setting but no ProPhoto RGB in the list.

Sounds quite castrated then...

cheers
afx

[WilsonC]

This has been mentioned on the PSP board. Here's a link for those interested. Don't know how this translates for Linux, Mac users.

In Windows you have to have the ProPhoto RGB colorspace installed first to use it in the PSP working color space list.

http://forum.corel.com/EN/viewtopic.php ... 08#p238508

[afx]

In Windows you have to have the ProPhoto RGB colorspace installed first to use it in the PSP working color space list.

So it should be trivial to copy it over from the AS install directory.

But I wonder how an image editor should be taken serious that doesn't even ship one of the most used standard working spaces. Makes me wonder whether PSP is even 16bit clean...

cheers
afx

[df]

So it should be trivial to copy it over from the AS install directory....

cheers
afx

Actually it is, at least in Windows.
Go to C:\Program Files (x86)\Corel\Corel AfterShot Pro\supportfiles\Profiles and you will see all of the profiles that ASP uses and comes installed with. You can choose any one you like to use in PSP (and likely many other editors), right click the ICC file and choose Install Profile. When you go to PSP X4 click File> Color Management> Color Working Space, and select the profile you want to use.

As for the comment about whether or not it's serious, Photoshop Elements doesn't ship with ProPhoto colorspace, and the full blown Photoshop uses Adobe RGB by default.

Note: for those of you not on a 64 bit computer there is no Program Files (x86) folder, it's just Program Files.

[afx]

As for the comment about whether or not it's serious, Photoshop Elements doesn't ship with ProPhoto colorspace

Of course not, it is castrated to work only in 8bits, so using ProPhoto would be a disaster anyway.

and the full blown Photoshop uses Adobe RGB by default.

But it is not a raw converter... And lots of people us it for 8 bit JPGs, not 16bit TIFFs or raw files. It does not help that ACR defaults to transfer images into PS in 8 bit either.
Just because Adobe ships something silly, it is no excuse to copy it.

cheers
afx

[df]

And just because ASP can open a file silly, doesn't mean it's actually any good at converting it.

[WilsonC]

AFX, I read your page about ProPhoto and have a couple questions. As soon as a 16bit file is saved as 8-bit the benefits of the larger colorspace disappear? So straight to print from 16bit ProPhoto RGB is desired(convert to sRGB for web or strictly monitor display)? Also, my cameras offer RGB or AdobeRGB as options. Does this mean that info is thrown away (shooting RAW of course)?

[afx]

AFX, I read your page about ProPhoto and have a couple questions. As soon as a 16bit file is saved as 8-bit the benefits of the larger colorspace disappear?

The problem with 8bits is that you do not have enough granularity in it when stretching the gamut wide. So you end up with posterization.

So straight to print from 16bit ProPhoto RGB is desired (convert to sRGB for web or strictly monitor display)?

Yes if possible. Of course, when sending to the average lab, they will not accept 16bit TIFF but only 8bit JPGs. So for max quality you need to have complete control over the process or a pro lab that handles 16bit files.

The interesting question now is, how much does it matter?
For images that do not have strong colors it is usually no an issue. But as soon as you have highly saturated colors it can have a drastic impact.

Also, my cameras offer RGB or AdobeRGB as options. Does this mean that info is thrown away (shooting RAW of course)?

That affects only the camera generated JPGs. Which are also embedded in the raw file and which are used to display the histogram. Therefore setting the cam to Adobe RGB will give you a slightly more accurate histogram in cam.
So there is no direct impact on the raw data, but an indirect one when you use the histogram to adjust your exposure.

cheers
afx

[WilsonC]

Thanks for the information AFX!

[df]

As for the comment about whether or not it's serious, Photoshop Elements doesn't ship with ProPhoto colorspace

Of course not, it is castrated to work only in 8bits, so using ProPhoto would be a disaster anyway.
cheers
afx

If you say so. Seems to work with 16 bit files for me just fine.