SANE frames

Stephen Williams (steve@icarus.com)
Sun, 15 Aug 1999 10:52:58 -0700

oliver.rauch@Wolfsburg.DE said:
> May be we should add a generic n-channel frame format
> (SANE_FRAME_N_CHANNELS or dthg like that) and put the numbers of
> frames and a list with the name/types of the frames into the parameter
> block.

This reminds me. Some of the scanners I'm working on not only generate
compressed images, but can have multiple images per page. I'm thinking
for example of one document scanner that can, for each page, produce
all at once:

up to 8 color images
up to 8 gray images
up to 8 binary images

Not to mention backside images as well. Each image can have different
characteristics (i.e. JFIF color/gray, TIFF G4 binary) and dimensions.
In particular, the scanner supports windows with these different properties
and their own scan area. An aware application needs to be able to find
out that these images are from the same page. Ideas?

This is not so pressing to me as the application being able to select
compressed frame formats (and blocking formats it can't handle) but
someone should be thinking of these things.

I know, I'm a pest on this list:-)

-- 
Steve Williams                "The woods are lovely, dark and deep.
steve@icarus.com              But I have promises to keep,
steve@picturel.com            and lines to code before I sleep,
http://www.picturel.com       And lines to code before I sleep."







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