how to process image with opencv in python?

Question

I want to use edge detection algorithms from opencv library. Here is a piece of python code:

from opencv.cv import *
from opencv.highgui import *

img = cvLoadIm         


        

Answer 1

For other folks interested in the same type of problem I recommend checking out http://simplecv.org

Here is a bit of code I wrote that does line detection on an image acquired from a webcam. It will even display the image over http.

import SimpleCV
import time

c = SimpleCV.Camera(1)
js = SimpleCV.JpegStreamer() 

while(1):
  img = c.getImage()
  img = img.smooth()
  lines = img.findLines(threshold=25,minlinelength=20,maxlinegap=20)
  [line.draw(color=(255,0,0)) for line in lines]
  #find the avg length of the lines
  sum = 0
  for line in lines:
      sum = line.length() + sum
  if sum:
      print sum / len(lines)
  else:
      print "No lines found!"
  img.save(js.framebuffer)
  time.sleep(0.1)

Check out the project I made this for at http://labs.radiantmachines.com/beard/ It will detect how long your neck beard is :)