get numpy array from pygame

Question

I want to access my Webcam via python. Unfortunately openCV is not working because of the webcam. Pygame.camera works like a charm with this code:

from pygame import camera,display

camera.init()
webcam = camera.Camera(camera.list_cameras()[0])
webcam.start()

img = webcam.get_image()

screen = display.set_mode((img.get_width(), img.get_height()))
display.set_caption("cam")

while True:
    screen.blit(img, (0,0))
    display.flip()   
    img = webcam.get_image()

My question is now, how can I get a numpy array from the webcam?

I'm having trouble making the jump from webcam to numpy array - are you trying to have an array of pixels from the image? — thegrinner
– thegrinner, Commented Nov 14, 2013 at 17:05

Warren Weckesser · Accepted Answer · 2013-11-14 17:15:43Z

5

get_image returns a Surface. According to http://www.pygame.org/docs/ref/surfarray.html, you can use pygame.surfarray.array2d (or one of the other functions in the surfarray module) to convert the Surface to a numpy array. E.g.

    img = webcam.get_image()
    data = pygame.surfarray.array2d(img)

answered Nov 14, 2013 at 17:15

Warren Weckesser

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