[IMAGE-SIG] Editing pixels

[Fredrik Lundh]

>Does PIL support a single pixel changing operation, or are there just
>expressions to evaluate on an image?

the point method in the ImageDraw class allows you to draw individual
pixels; it doesn't work on RGB images, though (that's fixed in 0.3b1).

0.3b1 will also provide 2D array syntax, including slicing for crop/paste
operations (guess it's high time, now that 1.4 has been available in 9
months...).

> The value of
> a given pixel can be found (img.im[0] etc.), but the color is a three
> tuple which is immutable.

getpixel is the official way to do that; getdata if you wish to access
the whole image as a 1D array.

Cheers /F


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