[Image-SIG] question and bug?
Thu, 07 Dec 2000 01:57:02 GMT
> of an Image (aside from saving it to a file). I've read the doc, but =
> missed it. How can I just manipulate pixel values directly, one by on=
as another poster said, you could use numeric python to manipulate=20
individual array elements, then when you're ready and done with all the =
calculations, throw the entire thing into an image. for a single band=20
data =3D resize(array(im.getdata(), typecode=3DInt),(im.size,im.size[=
...do stuff to data...
im2 =3D Image.new('L',data.shape,data.shape)
where data is the 2D array.
If you really want to do it all in PIL on a pixel by pixel basis, from=20
the PIL documentation:
"putpixel putpixel(xy, colour).
Modifies the pixel at the given position. The colour is given as a singl=
numerical value for single-band images, and a tuple for multi-band=20
images. For more extensive changes, use paste or the ImageDraw module=20