scantools

A series of tools to improve film scanning.

includes the following:

scantool
invertscan
vtrimscan
profilescan
takepicture

scantool

takes a single scan of multiple films strips removes the holder and separates each frame and inverts it

scantool both fullscan.tif
scantool both -p profile dmax 1.8 fullscan.tif prefix_used_output_files

scantool both -fb 0.85001 -dmax auto BW_gain1_85_033.tif BW_gain1_85_034.tif n10-816

or

scantool frames fullscan.tif

invertscan

inverts a scan using a variety of different approaches, which is controlled by flags

invertscan -c3 someneg.tif

vtrimscan

removes the film holder and separates film from a scan containing multiple images

e.g. usage:

 vtrimscan holder fullpage.tif

 trims the film vertically in to strips removing the holder frame holder between film strims

 vtrimscan holder -r 90 fullpage-strip-1.tif

 rotates the a film strip 90 degrees then removes the film holder from ends

 vtrimscan gap strip-1.tif

 separates each frame and trims the film

profilescan

Creates profile information for later use

e.g. usage:

profilescan -fb -p profile_name example_crop.tif

creates a profile called profile_name using example_crop.tif as the input

profilescan -fb -crop -crop 135x169+870+18213 -p profile_name example_crop.tif creates a profile called profile_name using cropped area from example_crop.tif as the input

profilescan -l

lists all existing profiles

takepicture

creates a "digital negative" purely for trying ideas out.

takepicture some.jpg

Examples

Download the file

wget https://i.ibb.co/tq8NL0y/kodak400.jpg

Normally this file would be a 16bit tiff, but this file works as example

the following commands then work

#scantool frames kodak400.jpg directory_to_create_files

#scantool both -fb 0.4196,0.2745,0.2039 kodak400.jpg output_dir