primax: Thread: Xsane -- Scan-mode is missing!

On Thu, Nov 28, 2002 at 03:53:31PM +0100, Andre Herms wrote:
> > different color modes belong into the backend, but they should really use
> > the scanner greyscale etc. hardware mode, so scanning becomes faster and
> > not simply scan full color and reduce in the backend.
> 
> Does the scanner support hardware grayscale mode? Of course should the scanner 
> do it if it can.
I think so. Scanning greyscale is much faster than scanning full color under
windows.
And in the specs for the E3 ASIC is some stuff which says there're different
color modes.

> The frontend has access to all the scanner funtions, the frontend has. A 1-bit 
> mode can be done by setting a step as gamma function. This would provide a 
> 30Bit threshold which is as good as the scanner can do. 
yes, but the real correction should be done by the scanner in hardware if it
supports it, and not by the frontend which only gets 24Bit data I suppose.

-- 
Christian Ordig
Germany

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>
> I think so. Scanning greyscale is much faster than scanning full color
> under windows.
> And in the specs for the E3 ASIC is some stuff which says there're
> different color modes.

How can this be used? It would be great to have grayscale preview for faster 
scanning. Can you send me the specs or are they under the NDA?.

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On Thu, Nov 28, 2002 at 04:39:24PM +0100, Andre Herms wrote:
> > I think so. Scanning greyscale is much faster than scanning full color
> > under windows.
> > And in the specs for the E3 ASIC is some stuff which says there're
> > different color modes.
> 
> How can this be used? It would be great to have grayscale preview for faster 
> scanning. Can you send me the specs or are they under the NDA?.
it is another ASIC ... it's the newer one used in the 1200, 9600 and 19200
(and maybe more) Primax Scanners and it's quite different.
The specs are under NDA ... but the code can be under GPL ... the question is:
would it break the NDA when quoting from the specs as comments in the source 
files?

-- 
Christian Ordig
Germany