This document discusses computer vision and optical character recognition options for the BlackBerry 10 platform. It provides links to resources for the OpenCV library and instructions for setting up an OpenCV project in Momentics IDE that utilizes the native camera API. Code for a sample face filter application is also referenced.

1. Native BB10 Camera
API
@stevenbeeckman
27 February 2013

2. Why?

3. Computer Vision

4. Options
DIY: low-level
https://www.coursera.org/course/vision
http://en.wikipedia.org/wiki/
Computer_vision
OCR: Tesseract (cfr BBJam AMS)
http://code.google.com/p/tesseract-ocr/
Computer Vision: OpenCV
http://opencv.org/

5. OpenCV & Momentics
http://supportforums.blackberry.com/t5/Cascades-Development/OpenCV-sample-project-and-troubles/td-p/2146603/highlight/true/page/2
Get the OpenCV port for BlackBerry
from http://github.com/blackberry/
OpenCV/
Get the OpenCV build from lewellyn:
http://www.greenviolet.net/~lewellyn/
OpenCV-QNX.zip
touch libopencv_core.a

6. OpenCV & Momentics
Change your common.mk, add stuff to
EXTRA_INCVPATH (include files from
BlackBerry OpenCV port)
EXTRA_LIBVPATH (point to binary
lib files from lewellyn) &
LIBS

7. OpenCV & Momentics
Add libopencv_core.so to your bar-
descriptor.xml assets.
Build!
Run!
Open an SSH session and do ‘pidin -p
HelloOpenCV mem’ and see if
opencv_core.so.2.4 is loaded.

8. Open sourced it
https://github.com/stevenbeeckman/
HelloOpenCV

9. Native C Camera API
http://developer.blackberry.com/
native/reference/bb10/
com.qnx.doc.camera.lib_ref/topic/
overview.html
Cry because of the “not so good”
documentation

10. Aaaaaand ACTION!

11. FaceFilter
https://github.com/blackberry/Presentations/tree/master/2012-BlackBerryJam-Americas/JAM15/FaceFilter