- split sane_get_parameters into two functions
- remove unused code from get_pixelsize
- support hardware based auto length detection
- various status and comment updates
- add simplified Hough transform based deskewing code
- add extremity detecting cropping code
- use per-model background color to fill corners after deskew
- request and chop extra scanlines instead of rounding down
- remove padding dumb scanners add to top of front side
- sane_get_params uses intermediate struct instead of user struct
- if scanner stops, clone the last line until the end of buffer
- reset some intermediate params between duplex sides
- add software brightness/contrast for dumb scanners
- add blocking mode to allow full-page manipulation options to run
- add swdespeck option and support code
- add swdeskew and swcrop options (disabled)
- crop/resample image data before buffering, not after
- shink image buffers to size of output image, not input
- correct some debug message
- better handling of EOF
- add intermediate param struct to existing user and scan versions
- change 300 dpi mode to be in 'half ccd' mode
- fix sensor pixel number
- allow for negative offset in shading data building
- rewrite compute_coefficients to handle negative offset and specialised
it for pixel deletion case
- fix calibration handling of flatbed scanners
- added search_strip function to command set
- coded search_strip for gl646
- initial calibration process for sheetfed scanners upto strip finding
- create a scanner calibration function that switches between
flatbed or sheetfed calibration
- added a sheetfed calibration function
- removed gamma table setting from calibration process
- call gamma setting during sane_start but before scanner calibration