CMS: ability to export image with scanner profile embedded

[gary@hushphoto.com]

It would be fantastic to be able to export an image after scanning while imbedding the image with the scanner profile created by silverfast 6 ai. As it is currently set up the silverfast software performs a transformation from scanner to working space. The user has the choice of rendering intent ( perceptual, relative colormetric, etc ) , but no way to treat a image case by case with any type of preview within the silverfast software. It only allows for default settings of rendering intent. Currently the most modern approach to imaging with source image profiles ( for example using Photoshop 7+) would to either to convert the image upon entry into Photoshop, or more desirable , the ablity to work with the image in the orginal source profile colorspace. This last option would allow less colorspace transformations to take place given some workflows, and this is always much desirable. The user still has the option to convert to a working space, and this option using Photoshop includes ways to preview the conversion.

[ilyons]

See:

http://www.computer-darkroom.com/sf5-ne ... f5_cms.htm

You'll note that embedding the scanner profile is fairly easy


Ian

[gary@hushphoto.com]

I am a bit leary of this method for a few reasons, although I will give it a try using Photoshop 7 on the Mac.

Will the preview within Silverfast be of any value, as to how the image will apppear in a color savey application?

I don't see how?

I believe this is stated in the Method 2 text.

Secondly, I am a bit leary of what type of internal calibration the software and hardware combination would be using.

For example, When scanning using the full CMS Method, there seems to be a complete workflow, but in using method 2, there is a bit of a broken link.
It would seem the same results could be obtained by using method 1, and then applying the scanner profile in Photoshop.
Either way the user is not allowed a accurate representation within Silverfast, which makes the wonderful tools available in Silverfast not very applicable.
I suppose I could use the full CMS method, prepare the scan in Silverfast using Preview methods, save frame settings, change the CMS settings to Method 2, Rescan and Apply the profile in Photoshop, then if desired, convert to working space using a chosen CMM, A chosen rendering intent, and be able to have accurate on screen representation. Of course to be really aware of what is happenning one must factor in that Photoshop will still be using the chosen system display profile, which will generally have a smaller gamut than either the working space, and or the scanner profile, and may or may not include an image which has color characteristics that could be a factor. (but thats a slightly different issue).

Keep in mind my workflow actually uses Mac OS, actually 10.2.*, and mostly Adobe Photoshop 7+, or similiar acting applications.

I also understand that Silverfast is providing software that probally is intended to work with multiple versions of software, and different Operating systems, and that perhaps it is necessary to lean toward the compatiblity with legacy methods for color management.


The Silverfast version for Mac OS X, is intended to be used as a photoshop plugin only.

Is there any documentation referring to which CMM Silverfast uses if multiple CMM's are available on the OS. I would imagine that it may access the default system CMM. Although perhaps it is a propriety CMM?

All said, Silverfast Ai 6 scanning software is the finest I have ever seen or used, I'm sure many others feel the same.

[ilyons]

I am a bit leary of this method for a few reasons, although I will give it a try using Photoshop 7 on the Mac.

Will the preview within Silverfast be of any value, as to how the image will apppear in a color savey application?


I don't see how?

Example 3 shows how to esnure that the image displayed in the SilverFast preview is correct.

I also understand that Silverfast is providing software that probally is intended to work with multiple versions of software, and different Operating systems, and that perhaps it is necessary to lean toward the compatiblity with legacy methods for color management.

Actually the workflow they offer isn't legacy - it provides options for folk having differing needs but it in no way short-changes anyone. The workflow you described in your earlier post as modern came straight out Jurasic Park - that is a legacy workflow and is unnecessary when using SilverFast correctly.

[gary@hushphoto.com]

I'll give that (method 3) a try, I feel like i'm getting warmer.

Also I am in no way trying to Dis or Slander, Silverfast ..Thank Them and God for there amazing development with this product and its wide ranged support of OS and Scanners. There implemtation of Color Management reminds me slightly of past Linocolor products, which really always kinda through me a loop. And perhaps I don't have the best understanding of the technical challenges involved with intergrating Color Management and Developing Scanning software.

What I meant by Modern Color Management Workflow, was the great benefit that happenned I think at Photoshop 6, where one no longer needed to convert and image with an imbedded profile (be it scanner or camera, or printer), to the chosen working space. At this point, a user could still keep the embedded profile and photoshop displayed with that embedded information. I generally use Adobe 1998 as a working space as well, and generally I convert most images to the working space before I begin the imagae work process. This allows us the opportunity to multi purpose the image with not much thought process. I have found recently (especially with digital camera profiles, which have a pretty certain destination), that when by passing the convert to working space workflow, and working in Photoshop 7 with the imbedded profile before final destination conversion, some advantages to color intergity.(Check out BruceLindbloom.com for some pretty heavy technical views on these matters).

And many thanks to Ian, who has responded to these postings and the resources and documentation he has provided us Silverfast users.