Download pdf - Making the printed world accessible: A11y in OCRFeeder (FOSDEM 2011)

static void_f_do_barnacle_install_properties(GObjectClass

*gobject_class){

GParamSpec *pspec;

/* Party code attribute */ pspec = g_param_spec_uint64

(F_DO_BARNACLE_CODE, "Barnacle code.", "Barnacle code",

0, G_MAXUINT64,

G_MAXUINT64 /* default value */,

G_PARAM_READABLE | G_PARAM_WRITABLE | G_PARAM_PRIVATE);

g_object_class_install_property (gobject_class,

F_DO_BARNACLE_PROP_CODE,

Joaquim [email protected]

Making the printed world accessible:A11y in OCRFeeder

FOSDEM 2011

Joaquim Rocha (Igalia) · OCRFeeder · FOSDEM 2010

What is it?

Document Analysis and Optical Character Recognition

for GNOME


What it does?

* Detect contents* Get their text using system-wide

OCR engines* Classify the contents as graphics

or text


How it works?

* Detect contents* Get their text using system-wide

OCR engines* Classify the contents as graphics

or text* Export the document in an editable

format


Because of this, OCRFeeder is useful for visually impaired users


... but there were some challenges when making the UI more

accessible



How to make it more accessible?






Direct ways:* Check the focus with Orca

* Set the accessible object's name to every “anonym” widget

* Set mnemonics and shortcuts * Add a menu/kb shortcut for every

“mouse” action* Add missing labels


Accessible objects' names


Add shortcut keys and tooltip texts to every widget


Add missing labels (and don't forget to assign their mnemonic widget)


Add menu entries for actions that could only be done with the mouse


Indirect ways:


Add feedback for every major time taking operation


Importation from scanner is important... Many printed material on paper


Improvement of columns detection

Without the With theImprovement improvement


Deskew of images because they might be slightly rotated when imported from a scanner(using the Hough transform)


A way to diminish the content areas' margins was added so it places the contents better in the generated documents.

Other improvements:Text cleaning: Correct false newline characters and remove hyphenation from the text given by OCR engines

Copy text to clipboard

Spellchecker support


Demo


Future work:* Assistant dialog to guide from

image addition to document generation

* Review focus changing* Use only one status bar


Webpage:http://live.gnome.org/OCRFeeder

git:http://git.gnome.org/ocrfeeder

Bugzilla:coming soon...

http://live.gnome.org/OCRFeeder

http://git.gnome.org/ocrfeeder


Thank you!