[Alt-photo] Curves and text files in QTR

forums at walkerblackwell.com forums at walkerblackwell.com
Fri May 26 14:17:09 UTC 2017


A basic correction for the record: the .quad numbers are between 0 and 65535 (256x256). These are essentially “16bit” ink numbers.  The max value on most .quads are lower than 65535 because that would over-ink the channel and pool.

cheers,
Walker



> On May 25, 2017, at 5:57 PM, Clay Harmon via Alt-photo-process-list <alt-photo-process-list at lists.altphotolist.org> wrote:
> 
> I’ve hacked on the .quad files on several warranty voiding exercises, and all the file contains is an ordered list of 256 values that are positive numbers between 0 and 32768 (2^15) for each ink jet head color. There is nowhere in the file that subsequently calls or references the .acv file. 
> 
> Clay


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