ocr-xsl

XSLT functions to transform common OCR formats

Format Cheatsheet
Shared concepts
- OCR formats
- Box coordinates
Function reference
- ocr.bbox.xsl
- ocr.image.xsl
  - ocr:image($format, $element)
  - ocr:hocr-image($element)

Format Cheatsheet

Check out OCR-Format-Comparison for a concise comparison of hOCR, ALTO, and ABBYY.

Shared concepts

OCR formats

hocr
alto
abbyy

Box coordinates

left
right
top
bottom
width
height

Function reference

`ocr.bbox.xsl`

source

Retrieve the bounding box of an element

`ocr:bbox($format, $element, $coord)`

$format: A valid OCR format
$element: The element to bound
$coord: A valid box coordinate

`ocr:hocr-bbox($element, $coord)`

$element: The element to bound
$coord: A valid box coordinate

`ocr:abbyy-bbox($slement, $coord)`

$element: The element to bound
$coord: A valid box coordinate

`ocr:alto-bbox($slement, $coord)`

$element: The element to bound
$coord: A valid box coordinate

`ocr.image.xsl`

source

Retrieve the image for an element

`ocr:image($format, $element)`

$format: A valid OCR format
$element: The element with image

`ocr:hocr-image($element)`

$element: The element with image