PyGame + OpenCV

gistfile1.py

# -*- coding: utf-8 -*-
import pygame
import Image
from pygame.locals import *
import sys

import opencv
#this is important for capturing/displaying images
from opencv import highgui 

camerar = highgui.cvCreateCameraCapture(0)
cameral = highgui.cvCreateCameraCapture(1)

def get_image_l():
    im = highgui.cvQueryFrame(cameral)
    # Add the line below if you need it (Ubuntu 8.04+)
    #im = opencv.cvGetMat(im)
    #convert Ipl image to PIL image
    return opencv.adaptors.Ipl2PIL(im) 

def get_image_r():
    im = highgui.cvQueryFrame(camerar)
    # Add the line below if you need it (Ubuntu 8.04+)
    #im = opencv.cvGetMat(im)
    #convert Ipl image to PIL image
    return opencv.adaptors.Ipl2PIL(im) 

fps = 30.0
pygame.init()
window = pygame.display.set_mode((640,480))
pygame.display.set_caption("WebCam Demo")
screen = pygame.display.get_surface()

left = 1

while True:
    events = pygame.event.get()
    for event in events:
        if event.type == QUIT:
            sys.exit(0)
	if  event.type == KEYDOWN:
	    left = 1-left
    if left==1:
      im = get_image_l()
      pg_img = pygame.image.frombuffer(im.tostring(), im.size, im.mode)
      screen.blit(pg_img, (0,0))
      pygame.display.flip()
      pygame.time.delay(int(1000 * 1.0/fps))
    else:
      im = get_image_r()
      pg_img = pygame.image.frombuffer(im.tostring(), im.size, im.mode)
      screen.blit(pg_img, (0,0))
      pygame.display.flip()
      pygame.time.delay(int(1000 * 1.0/fps))