Re: filmscanners: Vuescan: "device RGB"

[Arthur Entlich <artistic@ampsc.com>]

Richard,

 From my reading of info on Vuescan, it does indeed use the PCD 
colorspace, and I don't think any violation of anything is occurring. 
The color space of PCD could easily include all of the film types you 
speak of, regardless of a bias (filter) used during the scanning 
process.  Further, Kodak does use a universal "filter" for many of the 
films, and often labs only use that filter/calibration, unless 
specifically asked otherwise.  But these do not determine color space, 
they determine interpretation of the color values within the image.

Regarding ownership of the PCD color space, it would be a bit like 
saying Kodak owns the rights to the proper calibration to filter out the 
dye base colors on one of their print films, or better yet, that they 
own the color red, for instance.  Since all color spaces are a subset of 
white light, maybe I'll patent white light and claim ownership of all of 
them.

You are wrong about the Kodak Scanner situation as well (they can be 
bought outright), and about access to programs that write to PCD format.

What is proprietary is not the scanning process, but the software and 
algorithms which create the file packet and the disk formatting.

Art