maemo.org - Talk - View Single Post - use maemo (N900) camera by python

sinal	2011-10-29 , 09:15
Posts: 1 \| Thanked: 1 time \| Joined on Oct 2011	#1

I wrote a simple program for Maemo by Python to check some pixels color every time that my function is called.
But this program is working so slow (3-5 seconds each call).
Is there any faster way for doing this?

Code:

import Image
import os
import sys

#sen_pos = (pixel_x,pixel_y)
def sen(sen_pos):

    os.system("gst-launch v4l2src device=/dev/video0 num-buffers=1 ! ffmpegcolorspace ! jpegenc ! filesink location=cam.jpg")
    frame = Image.open("cam.jpg")
    col = frame.getpixel((sen_pos[0],sen_pos[1]))
    avecol = sum(col)/len(col)
    if avecol>127:
        return "white"
    elif avecol<127:
        return "black"
    return None

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