[sane-devel] How to increase the Color

[abel deuring]

stef wrote:
> 	gamma tables are 256 SANE_Int values wide, and values must range from 0 to 
> 255. The gamma-table is for grey scans, and the three others for color scans. So
> you'll have to assign values according to the scan you are doing. 
> 	The default gamma tables are fine, and you can get good scans without using
> gamma tables.

well, the size of the gamma table and the the range of the allowed 
values depend on the backend and on the scanner. For a scanner with a 10 
bit ADC it is reasonable to use a table with 1024 entries. Some other 
scanner with a 12 bit ADC may map 12 bit input value to 12 bit output 
values, so that the table has 4096 entries where each value may be in 
the range 0...4095

Abel