[sane-devel] Coolscan2: medium type.

[Peter Seiderer]

On Wed, May 08, 2002 at 05:40:27PM +0200, Hubert Figuiere wrote:
> Hi,
> 
> Concerning my slide scanning problem with the CoolScan III and
> coolscan  backend, using xsane, I have mostly solved it: 
> 
> Just set the medium type to "Full Range".
> I naively thought that setting the medium type would help. But not. At
> least not for slides. Can someone explain exactly this setting change
> and what its purpose is ?
> 
> 
> Hub

Hi,
from xsane.c:
static const Preferences_medium_t pref_default_medium[]=
{
/* medium                               shadow                  highlight                gamma                negative */
/* name                                 gray  red   green blue  gray  red   green blue   gray  red   gren  blue */
 { MENU_ITEM_MEDIUM_FULL_RANGE,          0.0,  0.0,  0.0,  0.0, 100.0,100.0,100.0,100.0, 1.00, 1.00, 1.00, 1.00 , 0},
 { MENU_ITEM_MEDIUM_SLIDE,               0.0,  0.0,  0.0,  0.0,  30.0, 30.0, 30.0, 30.0, 1.00, 1.00, 1.00, 1.00 , 0},
 { MENU_ITEM_MEDIUM_STANDARD_NEG,        0.0,  7.0,  1.0,  0.0,  66.0, 66.0, 33.0, 16.0, 1.00, 1.00, 1.00, 1.00 , 1},
 { MENU_ITEM_MEDIUM_AGFA_NEG,            0.0,  6.0,  2.0,  0.0,  31.0, 61.0, 24.0, 13.0, 1.00, 1.00, 1.00, 1.00 , 1},
 { MENU_ITEM_MEDIUM_AGFA_NEG_XRG200_4,   0.0, 12.0,  2.0,  1.6,  35.0, 61.5, 21.5, 14.5, 1.00, 0.80, 0.67, 0.60 , 1},
 { MENU_ITEM_MEDIUM_AGFA_NEG_HDC_100,    0.0,  3.5,  1.0,  0.5,  26.5, 53.5, 22.0, 17.0, 1.00, 0.79, 0.65, 0.60 , 1},
 { MENU_ITEM_MEDIUM_FUJI_NEG,            0.0,  7.0,  1.0,  0.0,  32.0, 64.0, 33.0, 16.0, 1.00, 1.00, 1.00, 1.00 , 1},
 { MENU_ITEM_MEDIUM_KODAK_NEG,           0.0,  9.0,  2.0,  0.0,  27.0, 54.0, 18.0, 12.0, 1.00, 1.00, 1.00, 1.00 , 1},
 { MENU_ITEM_MEDIUM_KONICA_NEG_VX_100,   0.0,  2.0,  0.0,  0.0,  25.0, 46.0, 22.0, 13.5, 1.00, 0.74, 0.56, 0.53 , 1},
 { MENU_ITEM_MEDIUM_ROSSMANN_NEG_HR_100, 0.0,  7.0,  1.0,  1.6,  26.5, 58.0, 25.5, 19.0, 1.00, 0.54, 0.43, 0.41 , 1}
};


Hope this helps a little bit.....

 Peter

-- 
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Peter Seiderer                     E-Mail:  Peter.Seiderer at ciselant.de