[sane-devel] Questions on dust-removal and infrared support on Nikon

[Oliver Rauch]

Hello.

1) the RGBA support is a hack of xsane, it is against the sane standard
2) in the moment it is not supported and I am not sure if I will spend
any time to make it work again.... we will see.

Oliver

On Thursday 10 April 2003 17:48, Laurent-jan wrote:
> Hi,
>
> I am using a nikon LS 2000 diascanner. I once had a working version
> of dustremoval with this scanner, consisting of the old coolscan
> backend, a specific version of xsane and a GIMP-plugin.
>
> Although the new coolscan backend supports the IR-channel, I cannot
> get this combination working again. So I have two questions:
>
> 1) The specific version of xsane required a #define SUPPORT_RGBA
> The latest version does no longer compile if you do this. Is support
> for this dropped? If not: I changed the following to get xsane
> compiled: xsane-save.c, <distribution, >my changes.
> 3832c3832
> <   else if (colors == 4) /* RGBA */
> ---
>
>  >   else if (image_info.colors == 4) /* RGBA */
>
> 3836c3836
> <     switch (bits)
> ---
>
>  >     switch (image_info.depth)
>
> 3840c3840
> <         for (i = 0; i < pixel_width*pixel_height*4; ++i)
> ---
>
>  >         for (i = 0; i < image_info.image_width *
>
> image_info.image_height*4; ++i)
> 3847c3847
> <             if (x >= pixel_width)
> ---
>
>  >             if (x >= image_info.image_width)
>
> 3856c3856
> <                 gimp_pixel_rgn_set_rect(&region, tile, 0, y -
> tile_height, pixel_width, tile_height);
> ---
>
>  >                 gimp_pixel_rgn_set_rect(&region, tile, 0, y -
>
> tile_height, image_info.image_width, tile_height);
> 3860c3860
> <               gtk_progress_bar_update(progress_bar, (float) y /
> pixel_height); /* update progress bar */
> ---
>
>  >               gtk_progress_bar_update(progress_bar, (float) y /
>
> image_info.image_height); /* update progress bar */
>
> Is that sufficient or did I miss anything? Nothing needed in
> xsane-gimp?
>
> 2)One of the things the coolscan2-backend is trying to do is
> to incorporate dust-removal in the backend. I cannot find the
> status of this. If needed, I can do some testing on the LS2000.
>
> ljm

-- 
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