N
Norbert Preining
Hi!
I am using Nikon LS5000 and vuescan (8.0.10) and I have a big amount of
slides to be scanned which are already in raw format scanned from
vuescan. Around all these images there is of course a nice bar which I
have to get rid.
Now if I do the batch scan from file with vuescan and set crop to auto
it does crop away most parts, but alas, not all, the left/right borders
leave out quite a black bar.
I checked the original raw 16bit tiff data which included the
infrared/alpha channel and it seems that it shouldn't be too complicated
to cut aways these pieces. The alpha channel in the whole border area
has values below 10, mostly even below 5, and everywhere else (i.e. in
the image) it is much higher.
I would like to have two options: one "aggressive" which cuts as much as
necessary to get rid of the black bars (thus sometimes cutting away
image data due to a twisted scan), and "conservative" which cuts out as
much black bar as possible but leave all the image data in order.
SO now the questions:
1) Is something possible with vuescan?
2) if not, do you know of any program which can
- work with 16bit tiff files with alpha channel
- can do this adjustments?
3) if again not, is it possible to implement something somehow?
Thanks a lot and best wishes
Norbert
I am using Nikon LS5000 and vuescan (8.0.10) and I have a big amount of
slides to be scanned which are already in raw format scanned from
vuescan. Around all these images there is of course a nice bar which I
have to get rid.
Now if I do the batch scan from file with vuescan and set crop to auto
it does crop away most parts, but alas, not all, the left/right borders
leave out quite a black bar.
I checked the original raw 16bit tiff data which included the
infrared/alpha channel and it seems that it shouldn't be too complicated
to cut aways these pieces. The alpha channel in the whole border area
has values below 10, mostly even below 5, and everywhere else (i.e. in
the image) it is much higher.
I would like to have two options: one "aggressive" which cuts as much as
necessary to get rid of the black bars (thus sometimes cutting away
image data due to a twisted scan), and "conservative" which cuts out as
much black bar as possible but leave all the image data in order.
SO now the questions:
1) Is something possible with vuescan?
2) if not, do you know of any program which can
- work with 16bit tiff files with alpha channel
- can do this adjustments?
3) if again not, is it possible to implement something somehow?
Thanks a lot and best wishes
Norbert