On Tue, Sep 9, 2014 at 3:59 AM, scann <scannopolis@gmail.com> wrote:

BUT I would like to have
someone writing some pieces of code to be able to "scan & upload":
which means, to scan your book and be able to upload it automatically
to wikimedia commons & wikisource, using the same control system,
specially with no command line interface.

Have you tried the Book Uploader Bot? It is a project created by Rohit (in CC) for his GSoC.
http://tools.wmflabs.org/bub/index

It takes some available images from digital libraries, uploads them to Internet Archive (which converts to djvu and adds OCR), and then notify the user with a link to transfer the file to Commons when the file is ready.

If you want to use the same workflow for Spreads, you would need to add an option to BUB to upload an image batch and request the metadata from the user. It doesn't seem that hard considering that most of the work has been done.

Cheers,

Micru