Friday, February 21, 2014

Imaging


Going to follow this...

https://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/image-processing/

having problem with the above to use the raspberry camera ... so going to try this instead

http://www.raspberrypi.org/archives/5672

source code to picamera
https://github.com/waveform80/picamera/

documentation for picamera
http://picamera.readthedocs.org/en/release-1.2/

*problem - its not displaying anything...

downloading a new tool tessaract -
http://wiki.raspberrytorte.com/index.php?title=Optical_Character_Recognition

HAving problems with tessaract not picking up the characters so going to install simplecv

instructions:
https://github.com/sightmachine/SimpleCV/blob/develop/doc/HOWTO-Install%20on%20RaspberryPi.rst

then i needed to fix a problem... svgwrite was not installed... so followed
http://www.raspberrypi.org/phpBB3/viewtopic.php?t=56103&p=460672

simplecv is working but its not detecting the camera... so now i have to install the driver...
http://www.linux-projects.org/modules/sections/index.php?op=viewarticle&artid=14


simpleCV - docs
http://simplecv.org/docs/


http://www.raspberrypi.org/phpBB3/viewtopic.php?t=57788

installed ssocr - and its not recognizing the digits!!?
http://www.raspberrypi.org/forum/viewtopic.php?f=37&t=57727


OK did it... needed SimpleCV and tesseract
sudo python basics3.py
tesseract image3mod.bmp output nobatch digits
cat output.txt

**not sure what nobatch as to do with it... but it did not make a difference if i took it out of the command line :)







Setting Up Raspberry Pi

Raspberry Pi -

Setting up the network

http://learn.adafruit.com/downloads/pdf/adafruits-raspberry-pi-lesson-3-network-setup.pdf

Setting up the camera

http://www.raspberrypi.org/camera


Need to americanize the keyboard otherwise it will have incorrect mapping...
http://rohankapoor.com/2012/04/americanizing-the-raspberry-pi/

you can verify by looking at
http://raspberrypi.stackexchange.com/questions/1042/why-is-my-symbol-not-working