RE: [hpoj-devel] more PML gray/color scanning support

[PASCHAL,DAVID (HP-Roseville,ex1) <dav...@hp...>]

Joe Piolunek wrote:
> Scanning in color worked on the 600, but with some problems:
Hi, Joe.  Thanks for the report.

> The document printed at a smaller size than the original ( at 
> about 60% of 
> the scanned doc).
I changed the default scanning resolution back to 100 for all models, so
perhaps 100 is too small if you're trying to do a copy.  You can try
experimenting with different resolutions, but this device may only support
specific resolutions, such as 100, 150, and 300.  Try running "ptal-hp
mlc:par:0 scan -help" and it will tell you what the device claims to
support.

> Printed at the bottom of the page was a large gray 
> rectangular area that was 
> not part of the original document.
> 
> When I opened the scanned page in gimp, the gray area gave 
> the impression 
> that the scan had continued past the end of the paper.
That's a result of the kludge I put in to guess the image height, because
the device doesn't properly report it.  I erred on the side of reporting too
much (specifically, twice the image width) instead of not enough.  I'll keep
working on this, and I may end up having to decompress the image just to
find the image height.

Also, regarding the "60% reduction" issue above, perhaps your image viewer
is scaling the image (including the trailer) down to make it all fit on one
page.  In addition to experimenting with different scanning resolutions, you
could try pasting the desired portion of the image into image and saving it
as a different file, or even as a different file type (i.e. .pnm), which
hopefully would eliminate the bad image height marker.

> The pixie image tool complained about a "premature end of 
> data segment" in 
> the out.jpg file, then crashed. gimp 1.2.1 also complained. 
> It did open the 
> file, but didn't handle it well.
In what way did gimp not handle it well?

David