I'm trying Vuescan out for various reasons and I was just going
through the settings. I've already scanned dozens of books in the
original software that came with the scanner. The books are like
comic books - with hand-drawn, color drawings.

Anyway... All those books are already saved in *.bmp format, so I'd
like to continue with that. But I can't find *.bmp as an option in
Vuescan - only *.jpg or *.tiff ...

Can Vuescan save files as *.bmp ?

Allan

Allan wrote:
> I'm trying Vuescan out for various reasons and I was just going
> through the settings. I've already scanned dozens of books in the
> original software that came with the scanner. The books are like
> comic books - with hand-drawn, color drawings.
>
> Anyway... All those books are already saved in *.bmp format, so I'd
> like to continue with that. But I can't find *.bmp as an option in
> Vuescan - only *.jpg or *.tiff ...

Just about no one uses BMP files any more so it is very likely they
don't.
But you can use a program like IrFanView to batch convert them from
tiff to bmp.

Scott

On 16 Jun 2006 10:04:45 -0700, "Scott W" <(E-Mail Removed)> wrote:

>But you can use a program like IrFanView to batch convert them from
>tiff to bmp.

I'd advise to do it the other way round: batch convert existing BMPs
to TIFF, perhaps with (lossless) compression.

TIFF is more flexible, usually smaller, very well supported everywhere
- the de facto standard for images in various modes. even the standard
fax file format is a TIFF.

On Sat, 17 Jun 2006 10:11:55 +0200, Evo2Me <(E-Mail Removed)> wrote:

>On 16 Jun 2006 10:04:45 -0700, "Scott W" <(E-Mail Removed)> wrote:
>
>>But you can use a program like IrFanView to batch convert them from
>>tiff to bmp.
>
>I'd advise to do it the other way round: batch convert existing BMPs
>to TIFF, perhaps with (lossless) compression.
>
>TIFF is more flexible, usually smaller, very well supported everywhere
>- the de facto standard for images in various modes. even the standard
>fax file format is a TIFF.

Thanks for the suggestion - I may do that. It's just that when I
first started scanning these books, the bmp files resulted in the
smallest size.

So can Vuescan save as bmp, or only tiff & jpg?

"Allan" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
SNIP
> So can Vuescan save as bmp, or only tiff & jpg?

TIFF, JPG, PDF, TXT (as OCR output), but BMP only as an index file
(e.g. a thumbnail index of all scanned files in a session).

Bart

On Sat, 17 Jun 2006 15:43:05 +0200, "Bart van der Wolf"
<(E-Mail Removed)> wrote:

>
>"Allan" <(E-Mail Removed)> wrote in message
>news:(E-Mail Removed)...
>SNIP
>> So can Vuescan save as bmp, or only tiff & jpg?
>
>TIFF, JPG, PDF, TXT (as OCR output), but BMP only as an index file
>(e.g. a thumbnail index of all scanned files in a session).
>
>Bart

Ok, thanks!

Evo2Me wrote:
> On 16 Jun 2006 10:04:45 -0700, "Scott W" <(E-Mail Removed)> wrote:
>
> >But you can use a program like IrFanView to batch convert them from
> >tiff to bmp.
>
> I'd advise to do it the other way round: batch convert existing BMPs
> to TIFF, perhaps with (lossless) compression.
>
> TIFF is more flexible, usually smaller, very well supported everywhere
> - the de facto standard for images in various modes. even the standard
> fax file format is a TIFF.
I would agree with this, bmp files are a windows format where as tiff
is pretty universal.
As for size I would thing they would be very close to the same.

Scott

On 17 Jun 2006 09:09:29 -0700, "Scott W" <(E-Mail Removed)> wrote:

>As for size I would thing they would be very close to the same.

TIFF has one or two standard lossless compression modes.

Evo2Me wrote:
> On 17 Jun 2006 09:09:29 -0700, "Scott W" <(E-Mail Removed)> wrote:
>
> >As for size I would thing they would be very close to the same.
>
> TIFF has one or two standard lossless compression modes.
But these modes never seem to work for photographs.
In Photoshop if you turn on compression when saving a tiff file it will
be larger
then if compression is off, for photographs that is.

Scott

"Scott W" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>
> Evo2Me wrote:
SNIP
>> TIFF has one or two standard lossless compression modes.

> But these modes never seem to work for photographs.
> In Photoshop if you turn on compression when saving a tiff
> file it will be larger then if compression is off, for
> photographs that is.

That depends on the bits/channel mode you are in and on image content.
You are correct that on many 16-b/ch images there is a risk of even
*increasing* the file size, but for 8-b/channel images (BMPs are
usually also 8-b/ch) it can make a significant difference.

I recently had to compress a 28630 x 11906 pixel up-sampled printfile
in order to fit it on a single CD. The 8-b/ch file sizes where as
follows:
975 MB uncompressed TIFF
404 MB LZW compressed TIFF
387 MB ZIP compressed TIFF
358 MB compressed PNG
165 MB Lossy compressed JPEG @ max. quality 12

I do know that the up-sampling reduces some of the lowest bit
fluctuations, but I also re-sharpened the result, otherwise the
compression would have been even more impressive, for an image file.

So it's always worth a try, especially on 8-b/ch files.

Bart



>
> Scott
>