LaserSoft Imaging

Hi,

I'm sort of new to color management and I have a few questions.

1. When you scan using Adobe 1998, does it capture (embed) more colors than using standard RGB? In other words, if I scan using standard RBG and then try to assign it a Adobe 1998 profile Photoshop, will I be able to restore all the color gamut of Adobe 1998 AFTER the TIF was previously created in standard RBG? Or do I need to scan in Adobe 1998 from the very beginning when I archive my photos?

2. If you scan using Adobe 1998 and do NOT embed the Adobe 1998 profile, what do I lose later on? In other words, if you scan using Adobe 1998, what would be the reason NOT to embed the Adobe 1998 profile?

3. If you scan using Adobe 1998 and then later on change the profile to standard RGB in Photoshop, does it convert to the same RGB colors that you would have gotten had you scanned in standard RBG from the beggining? I ask because when you scan in Adobe RGB and then in Photoshop export to JPEG in standard RBG, the colors look funny.

Thank you,
Brian Lee

Hi Brian,

BRIANPHOTO2 wrote:1. When you scan using Adobe 1998, does it capture (embed) more colors than using standard RGB?

I do not know which is the standard RGB color profile, it might be different on every operating system, the only why you might know is by using a program to open and make a graphic representation of the color profiles and compare them yourself.

BRIANPHOTO2 wrote:if I scan using standard RBG and then try to assign it a Adobe 1998 profile Photoshop, will I be able to restore all the color gamut of Adobe 1998 AFTER the TIF was previously created in standard RBG? Or do I need to scan in Adobe 1998 from the very beginning when I archive my photos?

The information that has been lost during the scanning process can not be recovered later by any means. In other words you will have to use the biggest color profile to save your file right at the beginning.

BRIANPHOTO2 wrote:2. If you scan using Adobe 1998 and do NOT embed the Adobe 1998 profile, what do I lose later on? In other words, if you scan using Adobe 1998, what would be the reason NOT to embed the Adobe 1998 profile?

The only reason I could think of is if you are going to work in a different work space, but even that does not make much sense because you can convert the embedded color profile to the target profile you are using.

BRIANPHOTO2 wrote:3. If you scan using Adobe 1998 and then later on change the profile to standard RGB in Photoshop, does it convert to the same RGB colors that you would have gotten had you scanned in standard RBG from the beggining? I ask because when you scan in Adobe RGB and then in Photoshop export to JPEG in standard RBG, the colors look funny.

Not necessarily, the scanner sees colors in a determined color spectrum which then will be translated to the internal color space for its representation and post-production. At this point the conversion method (rendering intent) is also important because if a color can not be captured within the range of the scanner, that color has to be interpreted and converted to the new color space, and the same happens when converting it to the internal color space. If you then in photoshop convert it again, probably the rendering intent will not be the same and the colors will not be correctly interpreted.
Again, if the color information is lost during the scanning stage, that information can not be recovered by photoshop.

Please read chapter number 7 of our user manual which can be downloaded at:

http://www.silverfast.com/download/docu/manual,complete_en_2006-11-27.pdf

Cheers