[korakotc]

Python may be a bit too slow for image processing.
Moreover, you can't read the color value of an image (or canvas)
with the current API.
So, here's a shortcut library that give you 'getpixel(x,y)' function
http://larndham.net/service/pys60/getpixel.py

# im is an image object
import getpixel
getpixel.enable(im)  # attach getpixel to Image class
r, g, b = im.getpixel(0,0) # top left corner

See more detail here.
http://www.bigbold.com/snippets/posts/show/632

[korakotc]

Here's the first script that does the simplest image processing.
It detects motion by summing pixel difference.
Only the hot spot (30x30) zone is evaluated, so it's not too slow.

http://www.bigbold.com/snippets/posts/show/636

I got the idea from here. (with screenshots)
http://gumuz.looze.net/wordpress/ind...ion-detection/

[jplauril]

Okay, okay, I'm convinced

The next release will have a native getpixel method so hopefully there will be no need to resort to these horrible hacks anymore.

[korakotc]

One use case for this is to create a mask automatically from image.

mask = automask(im, transparent=0xffffff)
c.blit(im, mask=mask)

You implement automask by
- mask = Image.new with black and white
- loop for all pixel, if equal transparent, point() it on mask
- return mask

Pretty useful to create Sprite.
transparent can even be default to top-left corner.

[korakotc]

Another use case is to find the boundary box of a text() on Canvas.
Not elegant though, it would be better to get the native support
for text() boundary.

[korakotc]

I have just written the automask functionality (necessary for Sprite).

def automask(im):
    width, height = im.size
    mask = Image.new(im.size, '1')
    tran = im.getpixel((0,0))[0]
    for y in range(height):
        line = im.getpixel([(x, y) for x in range(width)])
        for x in range(width):
            if line[x] == tran:
                mask.point((x,y), 0)
    return mask

[tufat123]

Hi.. Why dont u try GPix Pixel Ad Script from
http://tufat.com/s_milliondollarhomepage.htm? As far as I Know, its good! Would that be of some help?
-TufatUser