# CoolScan Backend Version 0.4.2 is out

Andreas (andreas.rick@free.fr)
Fri, 16 Jul 1999 20:25:36 +0200

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Hi to all SANE - People

I finished version 0.4.2 of the coolscan backend.
(Support for Nikon LS-30 LS-2000 LS-20 LS-1000).

It can be downloaded from my homepage which has
moved to:

http://andreas.rick.free.fr/

New features are:

* Infrared correction for dust removal (including a simple
gimp-plugin to do the actual removal)
* Greyscale scanning
* 10/12 bit scanning
* Cleaning up the options

I also uploaded a patch to make it work with xsane-0.28.

Please test and give me feedback - especially for the
scanners I dont have: LS-20 LS-1000 LS-2000

--------------------------------------------------------
I have got a question to the people who maintain the sane
distribution:

The dust-removal feature needs the infrared channel to be
scanned with the image. To do so I had to add two color FRAME formats:

typedef enum
{
SANE_FRAME_GRAY, /* band covering human visual range */
SANE_FRAME_RGB, /* pixel-interleaved red/green/blue bands */
SANE_FRAME_RED, /* red band only */
SANE_FRAME_GREEN, /* green band only */
SANE_FRAME_BLUE, /* blue band only */
SANE_FRAME_IRED, /* infrared band only */
SANE_FRAME_RGBI /* red/green/blue/ired bands */
}SANE_Frame;

to sane.h.

I think these changes do not break the compatibility for
the other backends.
What is the procedure to get these changes approved
and included into the official sane distribution?

I have already written the patches for the most commenly used
frontends: xscanimage/scanimage/xsane to uses these new
features.

-

Andreas

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