optimize2bw1
Automatic thresholder of the exactimage toolkit
Usage
optimize2bw [option ...]
{-i | --input}
input-file
{-o | --output}
output-file
optimize2bw --help
Overview
ExactImage is a fast C++ image processing library. Unlike many other library frameworks it allows operation in several color spaces and bit depths natively, resulting in low memory and computational requirements.
optimize2bw reads image files and performs automatic thresholding and optional scaling on the data. It is useful for long term archiving of documents that have to be stored in sub-byte black and white data to reduce storage requirements.
Options
-
-i file, --input file -
Read image from the specified file.
-
-o file, --output file -
Save output image to the specified file.
-
-n, --denoise -
Remove (“denoise”) single bit pixel noise.
-
-d n, --dpi n -
Scale the image to the specified resolution.
-
-h n, --high n -
Set high normalization value.
-
-l n, --low n -
Set low normalization value.
-
-r n, --radius n -
Set “unsharp mask” radius. The default is 0.
-
-s n, --scale n -
Set output scale factor. The default is 1.0.
-
-sd x, --standard-deviation x -
Set standard deviation for Gaussian distribution. The default is 0.0.
-
-t n, --threshold n -
Set threshold value. The default is 0.
-
--help -
Display help text and exit.
Examples
$ optimize2bw -i logo.jpg -o logo.tif Scale: 0
Releases
8 releases since Debian 6.0 (Squeeze); the text changed 4 times.