Ashish Asgekar wrote:
I was looking for Centroid function in Python and downloaded
PIL-1.1.6. I learnt that Centroid function is available as Crack Code.
However, when I search for CrackCode, I find it is not available anymore
from PythonWare.
1) Is CrackCode available in PIL-1.1.6 in some
> other form?
the CrackCode extension is no longer available, for licensing reasons.
2) Can I compute Centroid of an image using some other
existing function?
assuming that "im" contains a single feature (represented by non-zero
pixels), the following function should do the trick:
def get_centroid(im):
sx = sy = n = 0
x0, y0, x1, y1 = im.getbbox()
pix = im.load()
for y in range(y0, y1):
for x in range(x0, x1):
if pix[x, y]:
sx += x
sy += y
n += 1
return float(sx) / n + 0.5, float(sy) / n + 0.5
on my machine, the above can process about fourty 512x512 grayscale
images per second.
</F>
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