[sane-devel] Fw: Canon DR-2580C - size recognition problems

[Max Voit]

Well, it is indeed far better with the bottom not cut off.

I used 
 scanimage --mode Gray --source "ADF Duplex" --resolution 200
 --batch-count=2 --batch=s%d.pnm --page-height 300 --page-width 240 -x
 240 -y 300 --rollerdeskew=yes --swcrop=yes --swdeskew=no
output:
 scanimage: rounded value of page-height from 300 to 299.999
 scanimage: rounded value of page-width from 240 to 216.042
 scanimage: rounded value of br-x from 240 to 216.042
 scanimage: rounded value of br-y from 300 to 299.999
 Scanning 2 pages, incrementing by 1, numbering from 1
 Scanning page 1
 Scanned page 1. (scanner status = 5)
 Scanning page 2
 Scanned page 2. (scanner status = 5)
to generate the images attached. They are scaled down by factor 4 x 4,
means:

resolution: 				200 ppi
image-dimensions: 			1649 px x 2361 px
media-dimensions: 			210 mm x 297 mm
scan-dimensions:  			216 mm x 300 mm
height of black bar bottom front side: 	77 px
height of black bar top back side:     	72 px

kind regards,
Max

Am Mon, 31 Oct 2011 14:18:21 -0400
schrieb "m. allan noah" <kitno455 at gmail.com>:

> what is the height in pixels of the waste data at the top of the page,
> and what resolution did you scan at?
> 
> allan
> 
> On Mon, Oct 31, 2011 at 2:13 PM, Max Voit
> <max.voit+mlsa at with-eyes.net> wrote:
> > Ah, ic. I'll give it a try and given i find some time take a look at
> > the source.
> >
> > Thank you very much for your (indeed fast) help.
> >
> > Max
> >

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