empty-page1
Empty page detector of the exactimage toolkit
Usage
empty-page [option ...]
{-i | --input}
input-file
empty-page {-h | --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.
empty-page counts dark pixels of a black and white image and decides with a threshold whether the page is most probably empty, and thus can be removed from the image processing stream.
Options
-
-i file, --input file -
Read image from the specified file.
-
-m n, --margin n -
Set width of border margin to skip. For speed reasons, the margin has to be a multiple of 8. The default is 16.
-
-p x, --percentage x -
Set fraction of permissible dark pixels. The default is 0.05 (5%).
-
-h, --help -
Display help text and exit.
Examples
$ empty-page -i test.tif The image has 75461 dark pixels from a total of 1060992 (7.11231%). non-empty
Exit status
The exit status is 0 if the image is mostly white, 1 otherwise.
Releases
8 releases since Debian 6.0 (Squeeze); the text changed 4 times.