hocr2djvused (1)

hocr2djvused [option...] [hocr-file...]

hocr2djvused reads one or more \m[blue]hOCR\m[]\s-2\u[1]\d\s+2 files (as produced by \m[blue]OCRopus\m[]\s-2\u[2]\d\s+2 or \m[blue]Cuneiform\m[]\s-2\u[3]\d\s+2 or \m[blue]Tesseract\m[]\s-2\u[4]\d\s+2) and converts them to a djvused script.

Unless a filename is explicitly provided on the command line, hOCR is read from the standard input.

Text segmentation options

-t lines, --details lines

Record location of every line. Don't record locations of particular words or characters.

-t words, --details=words

Record location of every line and every word. Don't record locations of particular characters.

This is the default.

-t chars, --details=chars

Record location of every line, every word and every character.

--word-segmentation=simple

Consider each non-empty sequence of non-whitespace characters a single word.

This is the default, despite being linguistically incorrect.

--word-segmentation=uax29

Use the \m[blue]Unicode Text Segmentation\m[]\s-2\u[5]\d\s+2 algorithm to break lines into words.

This options break assumptions of some DjVu tools that words are separated by spaces, and therefore is it not recommended.

Other options

--rotation=n

Assume that DjVu pages are rotated by n degrees.

--page-size=widthxheight

Specifies that page size is width pixels \(mu height pixels.

This option is required for hOCR generated by Cuneiform (< 0.8) and superfluous otherwise.

--html5

Use a \m[blue]HTML5 parser\m[]\s-2\u[6]\d\s+2, which is more robust but slower than the default parser.

--fix-utf8

Attempt to fix UTF-8 encoding issues and eliminate unwanted control characters.

This option might be needed for hOCR generated by Cuneiform\s-2\u[7]\d\s+2 or Tesseract\s-2\u[8]\d\s+2.

--version

Output version information and exit.

-h, --help

Display help and exit.

Please report bugs at: \m[blue]https://bitbucket.org/jwilk/ocrodjvu/issues\m[]

djvu(1), ocrodjvu(1), djvu2hocr(1), djvused(1)

1.

hOCR

\m[blue]https://docs.google.com/View?docid=dfxcv4vc_67g844kf\m[]

2.

OCRopus

\m[blue]https://code.google.com/p/ocropus/\m[]

3.

Cuneiform

\m[blue]https://launchpad.net/cuneiform-linux\m[]

4.

Tesseract

\m[blue]https://code.google.com/p/tesseract-ocr/\m[]

5.

Unicode Text Segmentation

\m[blue]http://unicode.org/reports/tr29/\m[]

6.

HTML5 parser

\m[blue]http://www.whatwg.org/specs/web-apps/current-work/#html-parser\m[]

7.

\m[blue]https://bugs.launchpad.net/cuneiform-linux/+bug/585418\m[]

8.

\m[blue]https://code.google.com/p/tesseract-ocr/issues/detail?id=690\m[]