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Man Pages


Manual Reference Pages  -  MAKEPR (1)

NAME

makepr - create Primitive Rectangles in an image

CONTENTS

Synopsis
Description
Options
See Also
References
Author

SYNOPSIS

makepr [-options] in_file out_file [ out_file2 ]

DESCRIPTION

makepr reads a binary image and creates Primitive Rectangles. The Primitive Rectangle is the rectangle whose width is a constant (column width). See references for the detail of Primitive Rectangles.

The file format of in_file is binary pbm(5). The primitive rectangles are written on out_file and out_file2, whose file format are d4file(4) ordinally. Each rectangle is denoted by a 4-tuple, the position of the left-top corner, the width, and the height of the rectangle.

If the option -image is specified, the rectangle image is written on out_file. The file format of out_file is binary pbm(5) in this case.

OPTIONS

-or Logical "OR" of black pixels is used at the creation of rectangles. (This is default.)
-and Logical "AND" of black pixels is used at the creation of rectangles.
-reverse Reverse black and white of the input image.
-cwid N Set the width of Primitive Rectangles to N. The default value is N=16.
-image Create image file instead of rectangle file.
-box Fill the inside of rectangle by black. Use this option with -image.
-vert Create the vertical Primitive Rectangles instead of normal horizontal ones.
-mvec Create both horizontal and vertical Primitive Rectangles concurrently. Horizontal and vertical rectangles are written on out_file and out_file2 respectively.
-d8 Create 8-dimensional (8-tuple) file. (This is experimental.)
-llim N Suppress writing Primitive Rectangles each of whose height is less than N. The default is N=1.
-ulim N Suppress writing Primitive Rectangles each of whose height is more than N. The default is N=32767.

SEE ALSO

pbm(5), d4file(4)

REFERENCES

"Robust and Fast Text-line Extraction Using Local Linearity of the Text-line" by Hideaki Goto and Hirotomo Aso, Trans. IEICE (D-II), Vol.J78-D-II, No.3, pp.465-473, March 1995. (In Japanese)

Or its translated version,

"Robust and Fast Text-line Extraction Using Local Linearity of the Text-line" by Hideaki Goto and Hirotomo Aso, Systems and Computers in Japan, Vol.26, No.13, pp.21-31, 1995, Scripta Technica, Inc.

AUTHOR

Copyright (C) 1995-2009 Hideaki Goto

http://www.imglab.org/

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