lines.textlines

Extract the polygons of the textlines as a cropped rectangular image containing the image content of the line segmented polygon

Find text lines in scanned images and segment the lines into words.
Includes implementations of the paper 'Novel A* Path Planning Algorithm for Line Segmentation of Handwritten Documents' by Surinta O. et al (2014) <doi:10.1109/ICFHR.2014.37> available at <https://github.com/smeucci/LineSegm>,
an implementation of 'A Statistical approach to line segmentation in handwritten documents' by Arivazhagan M. et al (2007) <doi:10.1117/12.704538>,
and a wrapper for an image segmentation technique to detect words in text lines as described in the paper 'Scale Space Technique for Word Segmentation in Handwritten Documents' by Manmatha R. and Srimal N. (1999) paper at <doi:10.1007/3-540-48236-9_3>, wrapper for code available at <https://github.com/arthurflor23/text-segmentation>.
Provides as well functionality to put cursive text in images upright using the approach defined in the paper 'A new normalization technique for cursive handwritten words' by Vinciarelli A. and Luettin J. (2001) <doi:10.1016/S0167-8655(01)00042-3>.

Jan Wijffels

image.textlinedetector

Segment Images in Text Lines and Words

Vrije Universiteit Brussel - DIGI: Brussels Platform for Digital Humanities 

Jeroen Ooms

Arthur Flôr 

Saverio Meucci 

Yeara Kozlov 

Tino Weinkauf 

Harald Scheidl 

lines.textlines function

<dl><dt>x</dt>
<dd>an object of class <code>textlines</code> as returned by <code>image_textlines_astar</code> or <code>image_textlines_flor</code></dd>
<dt>image</dt>
<dd>an object of class magick-image</dd>
<dt>crop</dt>
<dd>extract only the bounding box of the polygon of the text lines</dd>
<dt>channels</dt>
<dd>either 'bgr' or 'gray' to work on the colored data or on binary greyscale data</dd>
<dt>...</dt>
<dd>further arguments passed on</dd></dl>

Arguments

Extract the polygons of the textlines — lines.textlines

<dl>

<dt>x</dt>
<dd>an object of class <code>textlines</code> as returned by <code>image_textlines_astar</code> or <code>image_textlines_flor</code></dd>


<dt>image</dt>
<dd>an object of class magick-image</dd>


<dt>crop</dt>
<dd>extract only the bounding box of the polygon of the text lines</dd>


<dt>channels</dt>
<dd>either 'bgr' or 'gray' to work on the colored data or on binary greyscale data</dd>


<dt>...</dt>
<dd>further arguments passed on</dd>

</dl>

lines.textlines: Extract the polygons of the textlines

Description

Usage

Value

Arguments

Examples