Hi,
I'm sorry for annoying you again, but I can't solve the problem.
I am using the command
scanimage -d umax:/dev/sgb --source Transparency Adapter --resolution 300dpi
-l 30 -t 10 -x 175 -y 225 --depth 12
so I should obtain 12bit (in two byte) per channel per pixel.
But this is a picture of bytes (two for one channel) that I obtain:
00001001 - 10100000
00001010 - 11110000
00001000 - 00100000
00001001 - 01100000
00001010 - 10010000
00001000 - 01100000
00001001 - 10000000
00001010 - 10110000
00001000 - 10000000
00001001 - 11100000
00001010 - 11010000
00001000 - 11000000
00001001 - 11100000
00001010 - 11110000
00001000 - 10010000
00001001 - 10100000
00001010 - 11010000
00001000 - 01100000
00001001 - 10100000
00001010 - 11000000
00001000 - 00110000
00001001 - 10000000
00001010 - 10000000
as you can see, they 8 bits values shifted of 4 bits.
what happens?
Am I doing something wrong?
Thank you
Pier
On Saturday 16 November 2002 00:16, Oliver Rauch wrote:
> When you do not use any gamma table options it is ok.
>
> SANE supports images with a color depth of 8 or 16 bits/sample.
> A 12 bit sample does use 16 bits (2 bytes). The raw data of UMAX
> or Linotype scanners already is transfered from the scanner to the
> backend in this format. It is the raw format of the scanner.
>
> Best regards
> Oliver
--
\ name: Piernicola OLIVA
o/\_ address: Universita' degli Studi di Sassari
<\__,\ Struttura Dipartimentale di Matematica e Fisica
"> | via Vienna 2, 07100, Sassari, Italia
` | tel: +39/079229486 (office)
\ +39/3401450473 (mobile)
\ fax: +39/079229482
\ e-mail: ol...@uniss.it
