[sane-devel] uploading color transformation matrix on HP 4c/3c

[Peter Kirchgessner]

Hello Michal,

you need to set mode color to use matrix-rgb. It is not available for
mode greyscale.
Please tell me if it works. I never tried that.

Where did you find <pkirchg@aol.com> ? This address is no longer valid.

Sincerely

Peter

Michal Marus(ka wrote:

 > is it implemented? (i need to modify only RGB->greyscale)
 > scanimage --help   seems to say so, but when i use it, i get
 >
 > $ scanimage --mode Grayscale   --matrix-rgb 0,1,0,0,0,0,0,0,0 > sample
 > scanimage: attempted to set inactive option matrix-rgb
 >
 >
 > the sane-backends/backend/hp.TODO says
 >
 >> Find a way to set matrices in the frontend (gtk-table with sliders ?)
 >>
 >
 > _______________________________________________
 > Sane-devel mailing list
 > Sane-devel@www.mostang.com
 > http://www.mostang.com/mailman/listinfo/sane-devel
 >
 >


-- 
Peter Kirchgessner
http://www.kirchgessner.net
mailto:peter@kirchgessner.net