Drawing a 640x480 Raw Image

Marc 'BlackJack' Rintsch bj_666 at gmx.net
Fri Sep 21 08:14:26 CEST 2007


On Thu, 20 Sep 2007 20:49:59 -0700, W. Watson wrote:

> W. Watson wrote:
>> I'm getting a 640x480 greyscale image from a video device. I'd like to 
>> place it on a canvas and then draw on the image. Does PIL or some image 
>> facility allow me to do that?
>
> Corrected misspelling in Subject. The image here is nothing more than a 
> 640x480 byte array. Each byte is a gra[e]yscale value.

PIL can do this:

from PIL import Image

def main():
    width = 640
    height = 480
    image = Image.new('L', (width, height))
    data = [x * y % 256 for x in xrange(width) for y in xrange(height)]
    image.putdata(data)
    image.save('test.png')

`data` can be any iterable with byte values.

Ciao,
	Marc 'BlackJack' Rintsch



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